The law of contradiction in things, that is, the law of the unity
        of opposites, is the basic law of materialist dialectics. Lenin said, "Dialectics in
        the proper sense is the study of contradiction in the very essence of objects.'' [1] Lenin often called this law the essence of dialectics; he also called
        it the kernel of dialectics. [2] In studying this law, therefore, we
        cannot but touch upon a variety of questions, upon a number of philosophical problems. If
        we can become clear on all these problems, we shall arrive at a fundamental understanding
        of materialist dialectics. The problems are: the two world outlooks, the universality of
        contradiction, the particularity of contradiction, the principal contradiction and the
        principal aspect of a contradiction, the identity and struggle of the aspects of a
        contradiction, and the place of antagonism in contradiction. The criticism to which the
        idealism of the Deborin school has been subjected in Soviet philosophical circles in
        recent years has aroused great interest among us. Deborin's idealism has exerted a very
        bad influence in the Chinese Communist Party, and it cannot be said that the dogmatist
        thinking in our Party is unrelated to the approach of that school. Our present study of
        philosophy should therefore have the eradication of dogmatist thinking as its main
        objective. 
         
        I. THE TWO WORLD OUTLOOKS 
        Throughout the history of human knowledge, there have been two
        conceptions concerning the law of development of the universe, the metaphysical conception
        and the dialectical conception, which form two opposing world outlooks. Lenin said: 
          - The two basic (or two possible? or two historically observable?) conceptions of
            development (evolution) are: development as decrease and increase, as repetition, and
            development as a unity of opposites (the division of a unity into mutually exclusive
            opposites and their reciprocal relation). [3] 
 
        
        Here Lenin was referring to these two different world outlooks. 
        In China another name for metaphysics is hsuan-hsueh. For a long period in
        history whether in China or in Europe, this way of thinking, which is part and parcel of
        the idealist world outlook, occupied a dominant position in human thought. In Europe, the
        materialism of the bourgeoisie in its early days was also metaphysical. As the social
        economy of many European countries advanced to the stage of highly developed capitalism,
        as the forces of production, the class struggle and the sciences developed to a level
        unprecedented in history, and as the industrial proletariat became the greatest motive
        force in historical development, there arose the Marxist world outlook of materialist
        dialectics. Then, in addition to open and barefaced reactionary idealism, vulgar
        evolutionism emerged among the bourgeoisie to oppose materialist dialectics. 
        The metaphysical or vulgar evolutionist world outlook sees things as isolated, static
        and one-sided. It regards all things in the universe, their forms and their species, as
        eternally isolated from one another and immutable. Such change as there is can only be an
        increase or decrease in quantity or a change of place. Moreover, the cause of such an
        increase or decrease or change of place is not inside things but outside them, that is,
        the motive force is external. Metaphysicians hold that all the different kinds of things
        in the universe and all their characteristics have been the same ever since they first
        came into being. All subsequent changes have simply been increases or decreases in
        quantity. They contend that a thing can only keep on repeating itself as the same kind of
        thing and cannot change into anything different. In their opinion, capitalist
        exploitation, capitalist competition, the individualist ideology of capitalist society,
        and so on, can all be found in ancient slave society, or even in primitive society, and
        will exist for ever unchanged. They ascribe the causes of social development to factors
        external to society, such as geography and climate. They search in an over-simplified way
        outside a thing for the causes of its development, and they deny the theory of materialist
        dialectics which holds that development arises from the contradictions inside a thing.
        Consequently they can explain neither the qualitative diversity of things, nor the
        phenomenon of one quality changing into another. In Europe, this mode of thinking existed
        as mechanical materialism in the 17th and 18th centuries and as vulgar evolutionism at the
        end of the 19th and the beginning of the 20th centuries. In China, there was the
        metaphysical thinking exemplified in the saying "Heaven changeth not, likewise the
        Tao changeth not", [4] and it was supported by the decadent feudal
        ruling classes for a long time. Mechanical materialism and vulgar evolutionism, which were
        imported from Europe in the last hundred gears, are supported by the bourgeoisie. 
        As opposed to the metaphysical world outlook, the world outlook of materialist
        dialectics holds that in order to understand the development of a thing we should study it
        internally and in its relations with other things; in other words, the development of
        things should be seen as their internal and necessary self-movement, while each thing in
        its movement is interrelated with and interacts on the things around it. The fundamental
        cause of the development of a thing is not external but internal; it lies in the
        contradictoriness within the thing. There is internal contradiction in every single thing,
        hence its motion and development. Contradictoriness within a thing is the fundamental
        cause of its development, while its interrelations and interactions with other things are
        secondary causes. Thus materialist dialectics effectively combats the theory of external
        causes, or of an external motive force, advanced by metaphysical mechanical materialism
        and vulgar evolutionism. It is evident that purely external causes can only give rise to
        mechanical motion, that is, to changes in scale or quantity, but cannot explain why things
        differ qualitatively in thousands of ways and why one thing changes into another. As a
        matter of fact, even mechanical motion under external force occurs through the internal
        contradictoriness of things. Simple growth in plants and animals, their quantitative
        development, is likewise chiefly the result of their internal contradictions. Similarly,
        social development is due chiefly not to external but to internal causes. Countries with
        almost the same geographical and climatic conditions display great diversity and
        unevenness in their development. Moreover, great social changes may take place in one and
        the same country although its geography and climate remain unchanged. Imperialist Russia
        changed into the socialist Soviet Union, and feudal Japan, which had locked its doors
        against the world, changed into imperialist Japan, although no change occurred in the
        geography and climate of either country. Long dominated by feudalism, China has undergone
        great changes in the last hundred years and is now changing in the direction of a new
        China, liberated and-free, and yet no change has occurred in her geography and climate.
        Changes do take place in the geography and climate of the earth as a whole and in every
        part of it, but they are insignificant when compared with changes in society; geographical
        and climatic changes manifest themselves in terms of tens of thousands of years, while
        social changes manifest themselves in thousands, hundreds or tens of years, and even in a
        few years or months in times of revolution. According to materialist dialectics, changes
        in nature are due chiefly to the development of the internal contradictions in nature.
        Changes in society are due chiefly to the development of the internal contradictions in
        society, that is, the contradiction between the productive forces and the relations of
        production, the contradiction between classes and the contradiction between the old and
        the new; it is the development of these contradictions that pushes society forward and
        gives the impetus for the supersession of the old society by the new. Does materialist
        dialectics exclude external causes? Not at all. It holds that external causes are the
        condition of change and internal causes are the basis of change, and that external causes
        become operative through internal causes. In a suitable temperature an egg changes into a
        chicken, but no temperature can change a stone into a chicken, because each has a
        different basis. There is constant interaction between the peoples of different countries.
        In the era of capitalism, and especially in the era of imperialism and proletarian
        revolution, the interaction and mutual impact of different countries in the political,
        economic and cultural spheres are extremely great. The October Socialist Revolution
        ushered in a new epoch in world history as well as in Russian history. It exerted
        influence on internal changes in the other countries in the world and, similarly and in a
        particularly profound way, on internal changes in China. These changes, however, were
        effected through the inner laws of development of these countries, China included. In
        battle, one army is victorious and the other is defeated, both the victory and the defeat
        are determined by internal causes The one is victorious either because it is strong or
        because of its competent generalship, the other is vanquished either because it is weak or
        because of its incompetent generalship; it is through internal causes that external causes
        become operative. In China in 1927, the defeat of the proletariat by the big bourgeoisie
        came about through the opportunism then to be found within the Chinese proletariat itself
        (inside the Chinese Communist Party). When we liquidated this opportunism, the Chinese
        revolution resumed its advance. Later, the Chinese revolution again suffered severe
        setbacks at the hands of the enemy, because adventurism had risen within our Party. When
        we liquidated this adventurism, our cause advanced once again. Thus it can be seen that to
        lead the revolution to victory, a political party must depend on the correctness of its
        own political line and the solidity of its own organization. 
        The dialectical world outlook emerged in ancient times both in China and in Europe.
        Ancient dialectics, however, had a somewhat spontaneous and naive character; in the social
        and historical conditions then prevailing, it was not yet able to form a theoretical
        system, hence it could not fully explain the world and was supplanted by metaphysics. The
        famous German philosopher Hegel, who lived in the late 18th and early 19th centuries, made
        most important contributions to dialectics, but his dialectics was idealist. It was not
        until Marx and Engels, the great protagonists of the proletarian movement, had synthesized
        the positive achievements in the history of human knowledge and, in particular, critically
        absorbed the rational elements of Hegelian dialectics and created the great theory of
        dialectical and historical materialism that an unprecedented revolution occurred in the
        history of human knowledge. This theory was further developed by Lenin and Stalin. As soon
        as it spread to China, it wrought tremendous changes in the world of Chinese thought. 
        This dialectical world outlook teaches us primarily how to observe and analyse the
        movement of opposites in different things and, on the basis of such analysis, to indicate
        the methods for resolving contradictions. It is therefore most important for us to
        understand the law of contradiction in things in a concrete way. 
         
        II. THE UNIVERSALITY OF CONTRADICTION 
        For convenience of exposition, I shall deal first with the
        universality of contradiction and then proceed to the particularity of contradiction. The
        reason is that the universality of contradiction can be explained more briefly, for it has
        been widely recognized ever since the materialist-dialectical world outlook was discovered
        and materialist dialectics applied with outstanding success to analysing many aspects of
        human history and natural history and to changing many aspects of society and nature (as
        in the Soviet Union) by the great creators and continuers of Marxism -- Marx, Engels,
        Lenin and Stalin; whereas the particularity of contradiction is still not dearly
        understood by many comrades, and especially by the dogmatists. They do not understand that
        it is precisely in the particularity of contradiction that the universality of
        contradiction resides. Nor do they understand how important is the study of the
        particularity of contradiction in the concrete things confronting us for guiding the
        course of revolutionary practice. Therefore, it is necessary to stress the study of the
        particularity of contradiction and to explain it at adequate length. For this reason, in
        our analysis of the law of contradiction in things, we shall first analyse the
        universality of contradiction, then place special stress on analysing the particularity of
        contradiction, and finally return to the universality of contradiction. 
        The universality or absoluteness of contradiction has a twofold meaning. One is that
        contradiction exists in the process of development of all things, and the other is that in
        the process of development of each thing a movement of opposites exists from beginning to
        end. 
        Engels said, "Motion itself is a contradiction." [5] Lenin
        defined the law of the unity of opposites as "the recognition (discovery) of the
        contradictory, mutually exclusive, opposite tendencies in all phenomena and
        processes of nature (including mind and society)". [6] Are
        these ideas correct? Yes, they are. The interdependence of the contradictory aspects
        present in all things and the struggle between these aspects determine the life of all
        things and push their development forward. There is nothing that does not contain
        contradiction; without contradiction nothing would exist. 
        Contradiction is the basis of the simple forms of motion (for instance, mechanical
        motion) and still more so of the complex forms of motion. 
        Engels explained the universality of contradiction as follows: 
          - If simple mechanical change of place contains a contradiction, this is even more true of
            the higher forms of motion of matter, and especially of organic life and its development.
            ... life consists precisely and primarily in this -- that a being is at each moment itself
            and yet something else. Life is therefore also a contradiction which is present in things
            and processes themselves, and which constantly originates and resolves itself; and as soon
            as the contradiction ceases, life, too, comes to an end, and death steps in. We likewise
            saw that also in the sphere of thought we could not escape contradictions, and that for
            example the contradiction between man's inherently unlimited capacity for knowledge and
            its actual presence only in men who are externally limited and possess limited cognition
            finds its solution in what is -- at least practically, for us -- an endless succession of
            generations, in infinite progress. 
... one of the basic principles of higher
            mathematics is the contradiction that in certain circumstances straight lines and curves
            may be the same.... 
            But even lower mathematics teems with contradictions. [7] 
           
        
        Lenin illustrated the universality of contradiction as follows: 
          - In mathematics: + and -- . Differential and integral. 
In mechanics: action and
            reaction. 
            In physics: positive and negative electricity. 
            In chemistry: the combination and dissociation of atoms. 
            In social science: the class struggle. [8] 
           
        
        In war, offence and defence, advance and retreat, victory and defeat are all mutually
        contradictory phenomena. One cannot exist without the other. The two aspects are at once
        in conflict and in interdependence, and this constitutes the totality of a war,
        pushes its development forward and solves its problems. 
        Every difference in men's concepts should be regarded as reflecting an objective
        contradiction. Objective contradictions are reflected in subjective thinking, and this
        process constitutes the contradictory movement of concepts, pushes forward the development
        of thought, and ceaselessly solves problems in man's thinking. 
        Opposition and struggle between ideas of different kinds constantly occur within the
        Party; this is a reflection within the Party of contradictions between classes and between
        the new and the old in society. If there were no contradictions in the Party and no
        ideological struggle& to resolve them, the Party's life would come to an end. 
        Thus it is already clear that contradiction exists universally and in all processes,
        whether in the simple or in the complex forms of motion, whether in objective phenomena or
        ideological phenomena. But does contradiction also exist at the initial stage of each
        process? 
        Is there a movement of opposites from beginning to end in the process of development of
        every single thing? 
        As can be seen from the articles written by Soviet philosophers criticizing it, the
        Deborin school maintains that contradiction appears not at the inception of a process but
        only when it has developed to a certain stage. If this were the case, then the cause of
        the development of the process before that stage would be external and not internal.
        Deborin thus reverts to the metaphysical theories of external causality and of mechanism.
        Applying this view in the analysis of concrete problems, the Deborin school sees only
        differences but not contradictions between the kulaks and the peasants in general under
        existing conditions in the Soviet Union, thus entirely agreeing with Bukharin. In
        analysing the French Revolution, it holds that before the Revolution there were likewise
        only differences but not contradictions within the Third Estate, which was composed of the
        workers, the peasants and the bourgeoisie. These views of the Deborin school are
        anti-Marxist. This school does not understand that each and every difference already
        contains contradiction and that difference itself is contradiction. Labour and capital
        have been in contradiction ever since the two classes came into being, only at first the
        contradiction had not yet become intense. Even under the social conditions existing in the
        Soviet Union, there is a difference between workers and peasants and this very difference
        is a contradiction, although, unlike the contradiction between labour and capital, it will
        not become intensified into antagonism or assume the form of class struggle; the workers
        and the peasants have established a firm alliance in the course of socialist construction
        and are gradually resolving this contradiction in the course of the advance from socialism
        to communism. The question is one of different kinds of contradiction, not of the presence
        or absence of contradiction. Contradiction is universal and absolute, it is present in the
        process of development of all things and permeates every process from beginning to end. 
        What is meant by the emergence of a new process? The old unity with its constituent
        opposites yields to a new unity with its constituent opposites, whereupon a new process
        emerges to replace the old. The old process ends and the new one begins. The new process
        contains new contradictions and begins its own history of the development of
        contradictions. 
        As Lenin pointed out, Marx in his Capital gave a model analysis of this movement
        of opposites which runs through the process of development of things from beginning to
        end. This is the method that must be employed in studying the development of all things.
        Lenin, too, employed this method correctly and adhered to it in all his writings. 
        In his Capital, Marx first analyses the simplest, most ordinary and fundamental,
        most common and everyday relation of bourgeois (commodity) society, a relation
        encountered billions of times, viz. the exchange of commodities. In this very simple
        phenomenon (in this "cell" of bourgeois society) analysis reveals all the
        contradictions (or the germs of all the contradictions) of modern society. The
        subsequent exposition shows us the development (both growth and movement) of
        these contradictions and of this society in the [summation] of its individual parts, from
        its beginning to its end. 
        Lenin added, "Such must also be the method of exposition (or study) of dialectics
        in general." [9] 
        Chinese Communists must learn this method; only then will they be able correctly to
        analyse the history and the present state of the Chinese revolution and infer its future. 
         
        III. THE PARTICULARITY OF CONTRADICTION 
        Contradiction is present in the process of development of all
        things; it permeates the process of development of each thing from beginning to end. This
        is the universality and absoluteness of contradiction which we have discussed above. Now
        let us discuss the particularity and relativity of contradiction. 
        This problem should be studied on several levels. 
        First, the contradiction in each form of motion of matter has its particularity. Man's
        knowledge of matter is knowledge of its forms of motion, because there is nothing in this
        world except matter in motion and this motion must assume certain forms. In considering
        each form of motion of matter, we must observe the points which it has in common with
        other forms of motion. But what is especially important and necessary, constituting as it
        does the foundation of our knowledge of a thing, is to observe what is particular to this
        form of motion of matter, namely, to observe the qualitative difference between this form
        of motion and other forms. Only when we have done so can we distinguish between things.
        Every form of motion contains within itself its own particular contradiction. This
        particular contradiction constitutes the particular essence which distinguishes one thing
        from another. It is the internal cause or, as it may be called, the basis for the immense
        variety of things in the world. There are many forms of motion in nature, mechanical
        motion, sound, light, heat, electricity, dissociation, combination, and so on. All these
        forms are interdependent, but in its essence each is different from the others. The
        particular essence of each form of motion is determined by its own particular
        contradiction. This holds true not only for nature but also for social and ideological
        phenomena. Every form of society, every form of ideology, has its own particular
        contradiction and particular essence. 
        The sciences are differentiated precisely on the basis of the particular contradictions
        inherent in their respective objects of study. Thus the contradiction peculiar to a
        certain field of phenomena constitutes the object of study for a specific branch of
        science. For example, positive and negative numbers in mathematics; action and reaction in
        mechanics; positive and negative electricity in physics; dissociation and combination in
        chemistry; forces of production and relations of production, classes and class struggle,
        in social science; offence and defence in military science; idealism and materialism, the
        metaphysical outlook and the dialectical outlook, in philosophy; and so on -- all these
        are the objects of study of different branches of science precisely because each branch
        has its own particular contradiction and particular essence. Of course, unless we
        understand the universality of contradiction, we have no way of discovering the universal
        cause or universal basis for the movement or development of things; however, unless we
        study the particularity of contradiction, we have no way of determining the particular
        essence of a thing which differentiates it from other things, no way of discovering the
        particular cause or particular basis for the movement or development of a thing, and no
        way of distinguishing one thing from another or of demarcating the fields of science. 
        As regards the sequence in the movement of man's knowledge, there is always a gradual
        growth from the knowledge of individual and particular things to the knowledge of things
        in general. Only after man knows the particular essence of many different things can he
        proceed to generalization and know the common essence of things. 
        When man attains the knowledge of this common essence, he uses it as a guide and
        proceeds to study various concrete things which have not yet been studied, or studied
        thoroughly, and to discover the particular essence of each; only thus is he able to
        supplement, enrich and develop his knowledge of their common essence and prevent such
        knowledge from withering or petrifying. These are the two processes of cognition: one,
        from the particular to the general, and the other, from the general to the particular.
        Thus cognition always moves in cycles and (so long as scientific method is strictly
        adhered to) each cycle advances human knowledge a step higher and so makes it more and
        more profound. Where our dogmatists err on this question is that, on the one hand, they do
        not understand that we have to study the particularity of contradiction and know the
        particular essence of individual things before we can adequately know the universality of
        contradiction and the common essence of things, and that, on the other hand, they do not
        understand that after knowing the common essence of things, we must go further and study
        the concrete things that have not yet been thoroughly studied or have only just emerged.
        Our dogmatists are lazy-bones. They refuse to undertake any painstaking study of concrete
        things, they regard general truths as emerging out of the void, they turn them into purely
        abstract unfathomable formulas, and thereby completely deny and reverse the normal
        sequence by which man comes to know truth. Nor do they understand the interconnection of
        the two processes in cognition -- from the particular to the general and then from the
        general to the particular. They understand nothing of the Marxist theory of knowledge. 
        It is necessary not only to study the particular contradiction and the essence
        determined thereby of every great system of the forms of motion of matter, but also to
        study the particular contradiction and the essence of each process in the long course of
        development of each form of motion of matter. In every form of motion, each process of
        development which is real (and not imaginary) is qualitatively different. Our study must
        emphasize and start from this point. 
        Qualitatively different contradictions can only be resolved by qualitatively different
        methods. For instance, the contradiction between the proletariat and the bourgeoisie is
        resolved by the method of socialist revolution; the contradiction between the great masses
        of the people and the feudal system is resolved by the method of democratic revolution;
        the contradiction between the colonies and imperialism is resolved by the method of
        national revolutionary war; the contradiction between the working class and the peasant
        class in socialist society is resolved by the method of collectivization and mechanization
        in agriculture; contradiction within the Communist Party is resolved by the method of
        criticism and self-criticism; the contradiction between society and nature is resolved by
        the method of developing the productive forces. Processes change, old processes and old
        contradictions disappear, new processes and new contradictions emerge, and the methods of
        resolving contradictions differ accordingly. In Russia, there was a fundamental difference
        between the contradiction resolved by the February Revolution and the contradiction
        resolved by the October Revolution, as well as between the methods used to resolve them.
        The principle of using different methods to resolve different contradictions is one which
        Marxist-Leninists must strictly observe. The dogmatists do not observe this principle;
        they do not understand that conditions differ in different kinds of revolution and so do
        not understand that different methods should be used to resolve different contradictions;
        on the contrary, they invariably adopt what they imagine to be an unalterable formula and
        arbitrarily apply it everywhere, which only causes setbacks to the revolution or makes a
        sorry mess of what was originally well done. 
        In order to reveal the particularity of the contradictions in any process in the
        development of a thing, in their totality or interconnections, that is, in order to reveal
        the essence of the process, it is necessary to reveal the particularity of the two aspects
        of each of the contradictions in that process; otherwise it will be impossible to discover
        the essence of the process. This likewise requires the utmost attention in our study. 
        There are many contradictions in the course of development of any major thing. For
        instance, in the course of China's bourgeois-democratic revolution, where the conditions
        are exceedingly complex, there exist the contradiction between all the oppressed classes
        in Chinese society and imperialism, the contradiction between the great masses of the
        people and feudalism, the contradiction between the proletariat and the bourgeoisie, the
        contradiction between the peasantry and the urban petty bourgeoisie on the one hand and
        the bourgeoisie on the other, the contradiction between the various reactionary ruling
        groups, and so on. These contradictions cannot be treated in the same way since each has
        its own particularity; moreover, the two aspects of each contradiction cannot be treated
        in the same way since each aspect has its own characteristics. We who are engages in the
        Chinese revolution should not only understand the particularity of these contradictions in
        their totality, that is, in their interconnections, but should also study the two aspects
        of each contradiction as the only means of understanding the totality. When we speak of
        understanding each aspect of a contradiction, we mean understanding what specific position
        each aspect occupies, what concrete forms it assumes in its interdependence and in its
        contradiction with its opposite, and what concrete methods are employed in the struggle
        with its opposite, when the two are both interdependent and in contradiction, and also
        after the interdependence breaks down. It is of great importance to study these problems.
        Lenin meant just this when he said that the most essential thing in Marxism, the living
        soul of Marxism, is the concrete analysis of concrete conditions. [10]
        Our dogmatists have violated Lenin's teachings; they never use their brains to analyse
        anything concretely, and in their writings and speeches they always use stereotypes devoid
        of content, thereby creating a very bad style of work in our Party. 
        In studying a problem, we must shun subjectivity, one-sidedness and superficiality. To
        be subjective means not to look at problems objectively, that is, not to use the
        materialist viewpoint in looking at problems. I have discussed this in my essay "On
        Practice". To be one-sided means not to look at problems all-sidedly, for example, to
        understand only China but not Japan, only the Communist Party but not the Kuomintang, only
        the proletariat but not the bourgeoisie, only the peasants but not the landlords, only the
        favourable conditions but not the difficult ones, only the past but not the future, only
        individual parts but not the whole, only the defects but not the achievements, only the
        plaintiff's case but not the defendant's, only underground revolutionary work but not open
        revolutionary work, and so on. In a word, it means not to understand the characteristics
        of both aspects of a contradiction. This is what we mean by looking at a problem
        one-sidedly. Or it may be called seeing the part but not the whole, seeing the trees but
        not the forest. That way it is impossible to kind the method for resolving a
        contradiction, it is impossible to accomplish the tasks of the revolution, to carry out
        assignments well or to develop inner-Party ideological struggle correctly. When Sun Wu Tzu
        said in discussing military science, "Know the enemy and know yourself, and you can
        fight a hundred battles with no danger of defeat'', [11] he was
        referring to the two sides in a battle. Wei Chengi [12] of the Tang
        Dynasty also understood the error of one-sidedness when he said, "Listen to both
        sides and you will be enlightened, heed only one side and you will be benighted." But
        our comrades often look at problems one-sidedly, and so they often run into snags. In the
        novel Shui Hu Chuan, Sung Chiang thrice attacked Chu Village. [13]
        Twice he was defeated because he was ignorant of the local conditions and used the wrong
        method. Later he changed his method; first he investigated the situation, and he
        familiarized himself with the maze of roads, then he broke up the alliance between the Li,
        Hu and Chu Villages and sent his men in disguise into the enemy camp to lie in wait, using
        a stratagem similar to that of the Trojan Horse in the foreign story. And on the third
        occasion he won. There are many examples of materialist dialectics in Shui Hu Chuan,
        of which the episode of the three attacks on Chu Village is one of the best. Lenin said: 
          - ... in order really to know an object we must embrace, study, all its sides, all
            connections and "mediations". We shall never achieve this completely, but the
            demand for all-sidedness is a safeguard against mistakes and rigidity. [14]
          
 
        
        We should remember his words. To be superficial means to consider neither the
        characteristics of a contradiction in its totality nor the characteristics of each of its
        aspects; it means to deny the necessity for probing deeply into a thing and minutely
        studying the characteristics of its contradiction, but instead merely to look from afar
        and, after glimpsing the rough outline, immediately to try to resolve the contradiction
        (to answer a question, settle a dispute, handle work, or direct a military operation).
        This way of doing things is bound to lead to trouble. The reason the dogmatist and
        empiricist comrades in China have made mistakes lies precisely in their subjectivist,
        one-sided and superficial way of looking at things. To be one-sided and superficial is at
        the same time to be subjective. For all objective things are actually interconnected and
        are governed by inner laws, but instead of undertaking the task of reflecting things as
        they really are some people only look at things one-sidedly or superficially and who know
        neither their interconnections nor their inner laws, and so their method is subjectivist. 
        Not only does the whole process of the movement of opposites in the development of a
        thing, both in their interconnections and in each of the aspects, have particular features
        to which we must give attention, but each stage in the process has its particular
        features to which we must give attention too. 
        The fundamental contradiction in the process of development of a thing and the essence
        of the process determined by this fundamental contradiction will not disappear until the
        process is completed; but in a lengthy process the conditions usually differ at each
        stage. The reason is that, although the nature of the fundamental contradiction in the
        process of development of a thing and the essence of the process remain unchanged, the
        fundamental contradiction becomes more and more intensified as it passes from one stage to
        another in the lengthy process. In addition, among the numerous major and minor
        contradictions which are determined or influenced by the fundamental contradiction, some
        become intensified, some are temporarily or partially resolved or mitigated, and some new
        ones emerge; hence the process is marked by stages. If people do not pay attention to the
        stages in the process of development of a thing, they cannot deal with its contradictions
        properly. 
        For instance, when the capitalism of the era of free competition developed into
        imperialism, there was no change in the class nature of the two classes in fundamental
        contradiction, namely, the proletariat and the bourgeoisie, or in the capitalist essence
        of society; however, the contradiction between these two classes became intensified, the
        contradiction between monopoly and non-monopoly capital emerged, the contradiction between
        the colonial powers and the colonies became intensified, the contradiction among the
        capitalist countries resulting from their uneven development manifested itself with
        particular sharpness, and thus there arose the special stage of capitalism, the stage of
        imperialism. Leninism is the Marxism of the era of imperialism and proletarian revolution
        precisely because Lenin and Stalin have correctly explained these contradictions and
        correctly formulated the theory and tactics of the proletarian revolution for their
        resolution. 
        Take the process of China's bourgeois-democratic revolution, which began with the
        Revolution of 1911; it, too, has several distinct stages. In particular, the revolution in
        its period of bourgeois leadership and the revolution in its period of proletarian
        leadership represent two vastly different historical stages. In other words, proletarian
        leadership has fundamentally changed the whole face of the revolution, has brought about a
        new alignment of classes, given rise to a tremendous upsurge in the peasant revolution,
        imparted thoroughness to the revolution against imperialism and feudalism, created the
        possibility of the transition from the democratic revolution to the socialist revolution,
        and so on. None of these was possible in the period when the revolution was under
        bourgeois leadership. Although no change has taken place in the nature of the fundamental
        contradiction in the process as a whole, i.e., in the anti-imperialist,
        anti-feudal, democratic-revolutionary nature of the process (the opposite of which is its
        semi-colonial and semi-feudal nature), nonetheless this process has passed through several
        stages of development in the course of more than twenty years; during this time many great
        events have taken place -- the failure of the Revolution of 1911 and the establishment of
        the regime of the Northern warlords, the formation of the first national united front and
        the revolution of 1924-27, the break-up of the united front and the desertion of the
        bourgeoisie to the side of the counterrevolution, the wars among the new warlords, the
        Agrarian Revolutionary War, the establishment of the second national united front and the
        War of Resistance Against Japan. These stages are marked by particular features such as
        the intensification of certain contradictions (e.g., the Agrarian Revolutionary War
        and the Japanese invasion of the four northeastern provinces), the partial or temporary
        resolution of other contradictions (e.g., the destruction of the Northern warlords
        and our confiscation of the land of the landlords), and the emergence of yet other
        contradictions (e.g., the conflicts among the new warlords, and the landlords'
        recapture of the land after the loss of our revolutionary base areas in the south). 
        In studying the particularities of the contradictions at each stage in the process of
        development of a thing, we must not only observe them in their interconnections or their
        totality, we must also examine the two aspects of each contradiction. 
        For instance, consider the Kuomintang and the Communist Party. Take one aspect, the
        Kuomintang. In the period of the first united front, the Kuomintang carried out Sun
        Yat-sen's Three Great Policies of alliance with Russia, co-operation with the Communist
        Party, and assistance to the peasants and workers; hence it was revolutionary and
        vigorous, it was an alliance of various classes for the democratic revolution. After 1927,
        however, the Kuomintang changed into its opposite and became a reactionary bloc of the
        landlords and big bourgeoisie. After the Sian Incident in December 1936, it began another
        change in the direction of ending the civil war and co-operating with the Communist Party
        for joint opposition to Japanese imperialism. Such have been the particular features of
        the Kuomintang in the three stages. Of course, these features have arisen from a variety
        of causes. Now take the other aspect, the Chinese Communist Party. In the period of the
        first united front, the Chinese Communist Party was in its infancy; it courageously led
        the revolution of 1924-27 but revealed its immaturity in its understanding of the
        character, the tasks and the methods of the revolution, and consequently it became
        possible for Chen Tu-hsiuism, which appeared during the latter part of this revolution, to
        assert itself and bring about the defeat of the revolution. After 1927, the Communist
        Party courageously led the Agrarian Revolutionary War and created the revolutionary army
        and revolutionary base areas; however, it committed adventurist errors which brought about
        very great losses both to the army and to the base areas. Since 1935 the Party has
        corrected these errors and has been leading the new united front for resistance to Japan;
        this great struggle is now developing. At the present stage, the Communist Party is a
        Party that has gone through the test of two revolutions and acquired a wealth of
        experience. Such have been the particular features of the Chinese Communist Party in the
        three stages. These features, too, have arisen from a variety of causes. Without studying
        both these sets of features we cannot understand the particular relations between the two
        parties during the various stages of their development, namely, the establishment of a
        united front, the break-up of the united front, and the establishment of another united
        front. What is even more fundamental for the study of the particular features of the two
        parties is the examination of the class basis of the two parties and the resultant
        contradictions which have arisen between each party and other forces at different periods.
        For instance, in the period of its first cooperation with the Communist Party, the
        Kuomintang stood in contradiction to foreign imperialism and was therefore
        anti-imperialist; on the other hand, it stood in contradiction to the great masses of the
        people within the country -- although in words it promised many benefits to the working
        people, in fact it gave them little or nothing. In the period when it carried on the
        anti-Communist war, the Kuomintang collaborated with imperialism and feudalism against the
        great masses of the people and wiped out all the gains they had won in the revolution, and
        thereby intensified its contradictions with them. In the present period of the
        anti-Japanese war, the Kuomintang stands in contradiction to Japanese imperialism and
        wants co-operation with the Communist Party, without however relaxing its struggle against
        the Communist Party and the people or its oppression of them. As for the Communist Party,
        it has always, in every period, stood with the great masses of the people against
        imperialism and feudalism, but in the present period of the anti-Japanese war, it has
        adopted a moderate policy towards the Kuomintang and the domestic feudal forces because
        the Kuomintang has «pressed itself in favour of resisting Japan. The above circumstances
        have resulted now in alliance between the two parties and now in struggle between them,
        and even during the periods of alliance there has been a complicated state of simultaneous
        alliance and struggle. If we do not study the particular features of both aspects of the
        contradiction, we shall fail to understand not only the relations of each party with the
        other forces, but also the relations between the two parties. 
        It can thus be seen that in studying the particularity of any kind of contradiction --
        the contradiction in each form of motion of matter, the contradiction in each of its
        processes of development, the two aspects of the contradiction in each process, the
        contradiction at each stage of a process, and the two aspects of the contradiction at each
        stage -- in studying the particularity of all these contradictions, we must not be
        subjective and arbitrary but must analyse it concretely. Without concrete analysis there
        can be no knowledge of the particularity of any contradiction. We must always remember
        Lenin's words, the concrete analysis of concrete conditions. 
        Marx and Engels were the first to provide us with excellent models of such concrete
        analysis. 
        When Marx and Engels applied the law of contradiction in things to the study of the
        socio-historical process, they discovered the contradiction between the productive forces
        and the relations of production, they discovered the contradiction between the exploiting
        and exploited classes and also the resultant contradiction between the economic base and
        its superstructure (politics, ideology, etc.), and they discovered how these
        contradictions inevitably lead to different kinds of social revolution in different kinds
        of class society. 
        When Marx applied this law to the study of the economic structure of capitalist
        society, he discovered that the basic contradiction of this society is the contradiction
        between the social character of production and the private character of ownership. This
        contradiction manifests itself in the contradiction between the organized character of
        production in individual enterprises and the anarchic character of production in society
        as a whole. In terms of class relations, it manifests itself in the contradiction between
        the bourgeoisie and the proletariat. 
        Because the range of things is vast and there is no limit to their development, what is
        universal in one context becomes particular in another. Conversely, what is particular in
        one context becomes universal in another. The contradiction in the capitalist system
        between the social character of production and the private ownership of the means of
        production is common to all countries where capitalism exists and develops; as far as
        capitalism is concerned, this constitutes the universality of contradiction. But this
        contradiction of capitalism belongs only to a certain historical stage in the general
        development of class society; as far as the contradiction between the productive forces
        and the relations of production in class society as a whole is concerned, it constitutes
        the particularity of contradiction. However, in the course of dissecting the particularity
        of all these contradictions in capitalist society, Marx gave a still more profound, more
        adequate and more complete elucidation of the universality of the contradiction between
        the productive forces and the relations of production in class society in general. 
        Since the particular is united with the universal and since the universality as well as
        the particularity of contradiction is inherent in everything, universality residing in
        particularity, we should, when studying an object, try to discover both the particular and
        the universal and their interconnection, to discover both particularity and universality
        and also their interconnection within the object itself, and to discover the
        interconnections of this object with the many objects outside it. When Stalin explained
        the historical roots of Leninism in his famous work, The Foundations of Leninism,
        he analysed the international situation in which Leninism arose, analysed those
        contradictions of capitalism which reached their culmination under imperialism, and showed
        how these contradictions made proletarian revolution a matter for immediate action and
        created favourable conditions for a direct onslaught on capitalism. What is more, he
        analysed the reasons why Russia became the cradle of Leninism, why tsarist Russia became
        the focus of all the contradictions of imperialism, and why it was possible for the
        Russian proletariat to become the vanguard of the international revolutionary proletariat.
        Thus, Stalin analysed the universality of contradiction in imperialism, showing why
        Leninism is the Marxism of the era of imperialism and proletarian revolution, and at the
        same time analysed the particularity of tsarist Russian imperialism within this general
        contradiction, showing why Russia became the birthplace of the theory and tactics of
        proletarian revolution and how the universality of contradiction is contained in this
        particularity. Stalin's analysis provides us with a model for understanding the
        particularity and the universality of contradiction and their interconnection. 
        On the question of using dialectics in the study of objective phenomena, Marx and
        Engels, and likewise Lenin and~Stalin, always enjoin people not to be in any way
        subjective and arbitrary but, from the concrete conditions in the actual objective
        movement of these phenomena, to discover their concrete contradictions, the concrete
        position of each aspect of every contradiction and the concrete interrelations of the
        contradictions. Our dogmatists do not have this attitude in study and therefore can never
        get anything right. We must take warning from their failure and learn to acquire this
        attitude, which is the only correct one in study. 
        The relationship between the universality and the particularity of contradiction is the
        relationship between the general character and the individual character of contradiction.
        By the former we mean that contradiction exists in and runs through all processes from
        beginning to end; motion, things, processes, thinking -- all are contradictions. To deny
        contradiction is to deny everything. This is a universal truth for all times and all
        countries, which admits of no exception. Hence the general character, the absoluteness of
        contradiction. But this general character is contained in every individual character;
        without individual character there can be no general character. If all individual
        character were removed, what general character would remain? It is because each
        contradiction is particular that individual character arises. All individual character
        exists conditionally and temporarily, and hence is relative. 
        This truth concerning general and individual character, concerning absoluteness and
        relativity, is the quintessence of the problem of contradiction in things; failure to
        understand it is tantamount to abandoning dialectics. 
         
        IV. THE PRINCIPAL CONTRADICTION
        AND THE PRINCIPAL ASPECT OF A CONTRADICTION 
        There are still two points in the problem of the particularity
        of contradiction which must be singled out for analysis, namely, the principal
        contradiction and the principal aspect of a contradiction. 
        There are many contradictions in the process of development of a complex thing, and one
        of them is necessarily the principal contradiction whose existence and development
        determine or influence the existence and development of the other contradictions. 
        For instance, in capitalist society the two forces in contradiction, the proletariat
        and the bourgeoisie, form the principal contradiction. The other contradictions, such as
        those between the remnant feudal class and the bourgeoisie, between the peasant petty
        bourgeoisie ant the bourgeoisie, between the proletariat and the peasant petty
        bourgeoisie, between the non-monopoly capitalists and the monopoly capitalists, between
        bourgeois democracy and bourgeois fascism, among the capitalist countries and between
        imperialism and the colonies, are all determined or influenced by this principal
        contradiction. 
        In a semi-colonial country such as China, the relationship between the principal
        contradiction and the non-principal contradictions presents a complicated picture. 
        When imperialism launches a war of aggression against such a country, all its various
        classes, except for some traitors, can temporarily unite in a national war against
        imperialism. At such a time, the contradiction between imperialism and the country
        concerned becomes the principal contradiction, while all the contradictions among the
        various classes within the country (including what was the principal contradiction,
        between the feudal system and the great masses of the people) are temporarily relegated to
        a secondary and subordinate position. So it was in China in the Opium War of 1840, the
        Sino-Japanese War of 1894 and the Yi Ho Tuan War of 1900, and so it is now in the present
        Sino-Japanese War. 
        But in another situation, the contradictions change position. When imperialism carries
        on its oppression not by war, but by milder means -- political, economic and cultural --
        the ruling classes in semi-colonial countries capitulate to imperialism, and the two form
        an alliance for the joint oppression of the masses of the people. At such a time, the
        masses often resort to civil war against the alliance of imperialism and the feudal
        classes, while imperialism often employs indirect methods rather than direct action in
        helping the reactionaries in the semi-colonial countries to oppress the people, and thus
        the internal contradictions become particularly sharp. This is what happened in China in
        the Revolutionary War of 1911, the Revolutionary War of 1924-27, and the ten years of
        Agrarian Revolutionary War after 1997. Wars among the various reactionary ruling groups in
        the semi-colonial countries, e.g., the wars among the warlords in China, fall into the
        same category. 
        When a revolutionary civil war develops to the point of threatening the very existence
        of imperialism and its running dogs, the domestic reactionaries, imperialism often adopts
        other methods in order to maintain its rule; it either tries to split the revolutionary
        front from within or sends armed forces to help the domestic reactionaries directly. At
        such a time, foreign imperialism and domestic reaction stand quite openly at one pole
        while the masses of the people stand at the other pole, thus forming the principal
        contradiction which determines or influences the development of the other contradictions.
        The assistance given by various capitalist countries to the Russian reactionaries after
        the October Revolution is an example of armed intervention. Chiang Kai-shek's betrayal in
        1927 is an example of splitting the revolutionary front. 
        But whatever happens, there is no doubt at all that at every stage in the development
        of a process, there is only one principal contradiction which plays the leading role. 
        Hence, if in any process there are a number of' contradictions, one of them must be the
        principal contradiction playing the leading and decisive role, while the rest occupy a
        secondary and subordinate position. Therefore, in studying any complex process in which
        there are two or more contradictions, we must devote every effort to funding its principal
        contradiction. Once this principal contradiction is grasped, all problems can be readily
        solved. This is the method Marx taught us in his study of capitalist society. Likewise
        Lenin and Stalin taught us this method when they studied imperialism and the general
        crisis of capitalism and when they studied the Soviet economy. There are thousands of
        scholars and men of action who do not understand it, and the result is that, lost in a
        fog, they are unable to get to the heart of a problem and naturally cannot find a way to
        resolve its contradictions. 
        As we have said, one must not treat all the contradictions in a process as being equal
        but must distinguish between the principal and the secondary contradictions, and pay
        special attention to grasping the principal one. But, in any given contradiction, whether
        principal or secondary, should the two contradictory aspects be treated as equal? Again,
        no. In any contradiction the development of the contradictory aspects is uneven. Sometimes
        they seem to be in equilibrium, which is however only temporary and relative, while
        unevenness is basic. Of the two contradictory aspects, one must be principal and the other
        secondary. The principal aspect is the one playing the leading role in the contradiction.
        The nature of a thing is determined mainly by the principal aspect of a contradiction, the
        aspect which has gained the dominant position. 
        But this situation is not static; the principal and the non-principal aspects of a
        contradiction transform themselves into each other and the nature of the thing changes
        accordingly. In a given process or at a given stage in the development of a contradiction,
        A is the principal aspect and B is the non-principal aspect; at another stage or in
        another process the roles are reversed -- a change determined by the extent of the
        increase or decrease in the force of each aspect in its struggle against the other in the
        course of the development of a thing. 
        We often speak of "the new superseding the old". The supersession of the old
        by the new is a general, eternal and inviolable law of the universe. The transformation of
        one thing into another, through leaps of different forms in accordance with its essence
        and external conditions -- this is the process of the new superseding the old. In each
        thing there is contradiction between its new and its old aspects, and this gives rise to a
        series of struggles with many twists and turns. As a result of these struggles, the new
        aspect changes from being minor to being major and rises to predominance, while the old
        aspect changes from being major to being minor and gradually dies out. And the moment the
        new aspect gains dominance over the old, the old thing changes qualitatively into a new
        thing. It can thus be seen that the nature of a thing is mainly determined by the
        principal aspect of the contradiction, the aspect which has gained predominance. When the
        principal aspect which has gained predominance changes, the nature of a thing changes
        accordingly. 
        In capitalist society, capitalism has changed its position from being a subordinate
        force in the old feudal era to being the dominant force, and the nature of society has
        accordingly changed from feudal to capitalist. In the new, capitalist era, the feudal
        forces changed from their former dominant position to a subordinate one, gradually dying
        out. Such was the case, for example, in Britain and France. With the development of the
        productive forces, the bourgeoisie changes from being a new class playing a progressive
        role to being an old class playing a reactionary role, until it is finally overthrown by
        the proletariat and becomes a class deprived of privately owned means of production and
        stripped of power, when it, too, gradually dies out. The proletariat, which is much more
        numerous than the bourgeoisie and grows simultaneously with it but under its rule, is a
        new force which, initially subordinate to the bourgeoisie, gradually gains strength,
        becomes an independent class playing the leading role in history, and finally seizes
        political power and becomes the ruling class. Thereupon the nature of society changes and
        the old capitalist society becomes the new socialist society. This is the path already
        taken by the Soviet Union, a path that all other countries will inevitably take. 
        Look at China, for instance. Imperialism occupies the principal position in the
        contradiction in which China has been reduced to a semi-colony, it oppresses the Chinese
        people, and China has been changed from an independent country into a semi-colonial one.
        But this state of affairs will inevitably change; in the struggle between the two sides,
        the power of the Chinese people which is growing under the leadership of the proletariat
        will inevitably change China from a semi-colony into an independent country, whereas
        imperialism will be overthrown and old China will inevitably change into New China. 
        The change of old China into New China also involves a change in the relation between
        the old feudal forces and the new popular forces within the country. The old feudal
        landlord class will be overthrown, and from being the ruler it will change into being the
        ruled; and this class, too, will gradually die out. From being the ruled the people, led
        by the proletariat, will become the rulers. Thereupon, the nature of Chinese society will
        change and the old, semi-colonial and semi-feudal society will change into a new
        democratic society. 
        Instances of such reciprocal transformation are found in our past experience. The Ching
        Dynasty which ruled China for nearly three hundred years was overthrown in the Revolution
        of 1911, and the revolutionary Tung Meng Hui under Sun Yat-sen's leadership was
        victorious for a time. In the Revolutionary War of 1924-27, the revolutionary forces of
        the Communist-Kuomintang alliance in the south changed from being weak to being strong and
        won victory in the Northern Expedition, while the Northern warlords who once ruled the
        roost were overthrown. In 1927, the people's forces led by the Communist Party were
        greatly reduced numerically under the attacks of Kuomintang reaction, but with the
        elimination of opportunism within their ranks they gradually grew again. In the
        revolutionary base areas under Communist leadership, the peasants have been transformed
        from being the ruled to being the rulers, while the landlords have undergone a reverse
        transformation. It is always so in the world, the new displacing the old, the old being
        superseded by the new, the old being eliminated to make way for the new, and the new
        emerging out of the old. 
        At certain times in the revolutionary struggle, the difficulties outweigh the
        favourable conditions and so constitute the principal aspect of the contradiction and the
        favourable conditions constitute the secondary aspect. But through their efforts the
        revolutionaries can overcome the difficulties step by step and open up a favourable new
        situation; thus a difficult situation yields place to a favourable one. This- is what
        happened after the failure of the revolution in China in 1927 and during the Long March of
        the Chinese Red Army. In the present Sino-Japanese War, China is again in a difficult
        position, but we can change this and fundamentally transform the situation as between
        China and Japan. Conversely, favourable conditions can be transformed into difficulty if
        the revolutionaries make mistakes. Thus the victory of the revolution of 1924-27 turned
        into defeat. The revolutionary base areas which grew up in the southern provinces after
        1927 had all suffered defeat by 1934. 
        When we engage in study, the same holds good for the contradiction in the passage from
        ignorance to knowledge. At the very beginning of our study of Marxism, our ignorance of or
        scanty acquaintance with Marxism stands in contradiction to knowledge of Marxism. But by
        assiduous study, ignorance can be transformed into knowledge, scanty knowledge into
        substantial knowledge, and blindness in the application of Marxism into mastery of its
        application. 
        Some people think that this is not true of certain contradictions. For instance, in the
        contradiction between the productive forces and the relations of production, the
        productive forces are the principal aspect; in the contradiction between theory and
        practice, practice is the principal aspect; in the contradiction between the economic base
        and the superstructure, the economic base is the principal aspect; and there is no change
        in their respective positions. This is the mechanical materialist conception, not the
        dialectical materialist conception. True, the productive forces, practice and the economic
        base generally play the principal and decisive role; whoever denies this is not a
        materialist. But it must also be admitted that in certain conditions, such aspects as the
        relations of production, theory and the superstructure in turn manifest themselves in the
        principal and decisive role. When it is impossible for the productive forces to develop
        without a change in the relations of production, then the change in the relations of
        production plays the principal and decisive role. The creation and advocacy of
        revolutionary theory plays the principal and decisive role in those times of which Lenin
        said, "Without revolutionary theory there can be no revolutionary movement.'' [15] When a task, no maker which, has to be performed, but there is as yet
        no guiding line, method, plan or policy, the principal and decisive thing is to decide on
        a guiding line, method, plan or policy. When the superstructure (politics, culture, etc.)
        obstructs the development of the economic base, political and cultural changes become
        principal and decisive. Are we going against materialism when we say this? No. The reason
        is that while we recognize that in the general development of history the material
        determines the mental and social being determines social consciousness, we also -- and
        indeed must -- recognize the reaction of mental on material things, of social
        consciousness on social being and of the superstructure on the economic base. This does
        not go against materialism; on the contrary, it avoids mechanical materialism and firmly
        upholds dialectical materialism. 
        In studying the particularity of contradiction, unless we examine these two facets --
        the principal and the non-principal contradictions in a process, and the principal and the
        non-principal aspects of a contradiction -- that is, unless we examine the distinctive
        character of these two facets of contradiction, we shall get bogged down in abstractions,
        be unable to understand contradiction concretely and consequently be unable to find the
        correct method of resolving it. The distinctive character or particularity of these two
        facets of contradiction represents the unevenness of the forces that are in contradiction.
        Nothing in this world develops absolutely evenly; we must oppose the theory of even
        development or the theory of equilibrium. Moreover, it is these concrete features of a
        contradiction and the changes in the principal and non-principal aspects of a
        contradiction in the course of its development that manifest the force of the new
        superseding the old. The study of the various states of unevenness in contradictions, of
        the principal and non-principal contradictions and of the principal and the non-principal
        aspects of a contradiction constitutes an essential method by which a revolutionary
        political party correctly determines its strategic and tactical policies both in political
        and in military affairs. All Communists must give it attention. 
         
        V. THE IDENTITY AND STRUGGLE
        OF THE ASPECTS OF A CONTRADICTION 
        When we understand the universality and the particularity of
        contradiction, we must proceed to study the problem of the identity and struggle of the
        aspects of a contradiction. 
        Identity, unity, coincidence, interpenetration, interpermeation, interdependence (or
        mutual dependence for existence), interconnection or mutual co-operation -- all these
        different terms mean the same thing and refer to the following two points: first,
        the existence of each of the two aspects of a contradiction in the process of the
        development of a thing presupposes the existence of the other aspect, and both aspects
        coexist in a single entity; second, in given conditions, each of the two contradictory
        aspects transforms itself into its opposite. This is the meaning of identity. 
        Lenin said: 
          - Dialectics is the teaching which shows how opposites can be and how they
            happen to be (how they become) identical -- under what conditions they are
            identical, transforming themselves into one another, -- why the human mind should take
            these opposites not as dead, rigid, but as living, conditional, mobile, transforming
            themselves into one another. [16] 
 
        
        What does this passage mean? 
        The contradictory aspects in every process exclude each other, struggle with each other
        and are in opposition to each other. Without exception, they are contained in the process
        of development of all things and in all human thought. A simple process contains only a
        single pair of opposites, while a complex process contains more. And in turn, the pairs of
        opposites are in contradiction to one another.) 
        That is how all things in the objective world and all human thought are constituted and
        how they are set in motion. 
        This being so, there is an utter lack of identity or unity. How then can one speak of
        identity or unity? 
        The fact is that no contradictory aspect can exist in isolation. Without its opposite
        aspect, each loses the condition for its existence. Just think, can any one contradictory
        aspect of a thing or of a concept in the human mind exist independently? Without life,
        there would be no death; without death, there would be no life. Without "above",
        there would be no "below") without "below", there would be no
        "above". Without misfortune, there would be no good fortune; without good
        fortune, these would be no misfortune. Without facility, there would be no difficulty)
        without difficulty, there would be no facility. Without landlords, there would be no
        tenant-peasants; without tenant-peasants, there would be no landlords. Without the
        bourgeoisie, there would be no proletariat; without the proletariat, there would be no
        bourgeoisie. Without imperialist oppression of nations, there would be no colonies or
        semi-colonies; without colonies or semicolonies, there would be no imperialist oppression
        of nations. It is so with all opposites; in given conditions, on the one hand they are
        opposed to each other, and on the other they are interconnected, interpenetrating,
        interpermeating and interdependent, and this character is described as identity. In given
        conditions, all contradictory aspects possess the character of non-identity and hence are
        described as being in contradiction. But they also possess the character of identity and
        hence are interconnected. This is what Lenin means when he says that dialectics studies
        "how opposites can be ... identical". How then can they be
        identical? Because each is the condition for the other's existence. This is the first
        meaning of identity. 
        But is it enough to say merely that each of the contradictory aspects is the condition
        for the other's existence, that there is identity between them and that consequently they
        can coexist in a single entity? No, it is not. The matter does not end with their
        dependence on each other for their existence; what is more important is their
        transformation into each other. That is to say, in given conditions, each of the
        contradictory aspects within a thing transforms itself into its opposite, changes its
        position to that of its opposite. This is the second meaning of the identity of
        contradiction. 
        Why is there identity here, too? You see, by means of revolution the proletariat, at
        one time the ruled, is transformed into the ruler, while the bourgeoisie, the erstwhile
        ruler, is transformed into the ruled and changes its position to that originally occupied
        by its opposite. This has already taken place in the Soviet Union, as it will take place
        throughout the world. If there were no interconnection and identity of opposites in given
        conditions, how could such a change take place? 
        The Kuomintang, which played a certain positive role at a certain stage in modern
        Chinese history, became a counter-revolutionary party after 1927 because of its inherent
        class nature and because of imperialist blandishments (these being the conditions); but it
        has been compelled to agree to resist Japan because of the sharpening of the contradiction
        between China and Japan and because of the Communist Party's policy of the united front
        (these being the conditions). Things in contradiction change into one another, and herein
        lies a definite identity. 
        Our agrarian revolution has been a process in which the landlord class owning the land
        is transformed into a class that has lost its land, while the peasants who once lost their
        land are transformed into small holders who have acquired land, and it will be such a
        process once again. In given conditions having and not having, acquiring and losing, are
        interconnected; there is identity of the two sides. Under socialism, private peasant
        ownership is transformed into the public ownership of socialist agriculture; this has
        already taken place in the Soviet Union, as it will take place everywhere else. There is a
        bridge leading from private property to public property, which in philosophy is called
        identity, or transformation into each other, or interpenetration. 
        To consolidate the dictatorship of the proletariat or the dictatorship of the people is
        in fact to prepare the conditions for abolishing this dictatorship and advancing to the
        higher stage when all state systems are eliminated. To establish and build the Communist
        Party is in fact to prepare the conditions for the elimination of the Communist Party and
        all political parties. To build a revolutionary army under the leadership of the Communist
        Party and to carry on revolutionary war is in fact to prepare the conditions for the
        permanent elimination of war. These opposites are at the same time complementary. 
        War and peace, as everybody knows, transform themselves into each other. War is
        transformed into peace; for instance, the First World War was transformed into the
        post-war peace, and the civil war in China has now stopped, giving place to internal
        peace. Peace is transformed into war; for instance, the Kuomintang-Communist co-operation
        was transformed into war in 1927, and today's situation of world peace may be transformed
        into a second world war. Why is this so? Because in class society such contradictory
        things as war and peace have an identity in given conditions. 
        All contradictory things are interconnected; not only do they coexist in a single
        entity in given conditions, but in other given conditions, they also transform themselves
        into each other. This is the full meaning of the identity of opposites. This is what Lenin
        meant when he discussed "how they happen to be (how they become) identical --
        under what conditions they are identical, transforming themselves into one another". 
        Why is it that "the human mind should take these opposites not as dead, rigid, but
        as living, conditional, mobile, transforming themselves into one another"? Because
        that is just how things are in objective reality. The fact is that the unity or identity
        of opposites in objective things is not dead or rigid, but is living, conditional, mobile,
        temporary and relative; in given conditions, every contradictory aspect transforms itself
        into its opposite. Reflected in man's thinking, this becomes the Marxist world outlook of
        materialist dialectics. It is only the reactionary ruling classes of the past and present
        and the metaphysicians in their service who regard opposites not as living, conditional,
        mobile and transforming themselves into one another, but as dead and rigid, and they
        propagate this fallacy everywhere to delude the masses of the people, thus seeking to
        perpetuate their rule. The task of Communists is to expose the fallacies of the
        reactionaries and metaphysicians, to propagate the dialectics inherent in things, and so
        accelerate the transformation of things and achieve the goal of revolution. 
        In speaking of the identity of opposites in given conditions, what we are referring to
        is real and concrete opposites and the real and concrete transformations of opposites into
        one another. There are innumerable transformations in mythology, for instance, Kua Fu's
        race with the sun in Shan Hai Ching, [17] Yi's shooting down of
        nine suns in Huai Nan Tzu, [18] the Monkey King's seventy-two
        metamorphoses in Hsi Yu Chi, [19] the numerous episodes of
        ghosts and foxes metamorphosed into human beings in the Strange Tales of Liao Chai,
        [20] etc. But these legendary transformations of opposites are not
        concrete changes reflecting concrete contradictions. They are naive, imaginary,
        subjectively conceived transformations conjured up in men's minds by innumerable real and
        complex transformations of opposites into one another. Marx said, "All mythology
        masters and dominates and shapes the forces of nature in and through the imagination;
        hence it disappears as soon as man gains mastery over the forces of nature.'' [21] The myriads of changes in mythology (and also in nursery tales)
        delight people because they imaginatively picture man's conquest of the forces of nature,
        and the best myths possess "eternal charm", as Marx put it; but myths are not
        built out of the concrete contradictions existing in given conditions and therefore are
        not a scientific reflection of reality. That is to say, in myths or nursery tales the
        aspects constituting a contradiction have only an imaginary identity, not a concrete
        identity. The scientific reflection of the identity in real transformations is Marxist
        dialectics. 
        Why can an egg but not a stone be transformed into a chicken? Why is there identity
        between war and peace and none between war and a stone? Why can human beings give birth
        only to human beings and not to anything else? The sole reason is that the identity of
        opposites exists only in necessary given conditions. Without these necessary given
        conditions there can be no identity whatsoever. 
        Why is it that in Russia in 1917 the bourgeois-democratic February Revolution was
        directly linked with the proletarian socialist October Revolution, while in France the
        bourgeois revolution was not directly linked with a socialist revolution and the Paris
        Commune of 1871 ended in failure? Why is it, on the other hand, that the nomadic system of
        Mongolia and Central Asia has been directly linked with socialism? Why is it that the
        Chinese revolution can avoid a capitalist future and be directly linked with socialism
        without taking the old historical road of the Western countries, without passing through a
        period of bourgeois dictatorship? The sole reason is the concrete conditions of the time.
        When certain necessary conditions are present, certain contradictions arise in the process
        of development of things and, moreover, the opposites contained in them are interdependent
        and become transformed into one another; otherwise none of this would be possible. 
        Such is the problem of identity. What then is struggle? And what is the relation
        between identity and struggle? 
        Lenin said: 
          - The unity (coincidence, identity, equal action) of opposites is conditional, temporary,
            transitory, relative. The struggle of mutually exclusive opposites is absolute, just as
            development and motion are absolute. [22] 
 
        
        What does this passage mean? 
        All processes have a beginning and an end, all processes transform themselves into
        their opposites. The constancy of all processes is relative, but the mutability manifested
        in the transformation of one process into another is absolute. 
        There are two states of motion in all things, that of relative rest and that of
        conspicuous change. Both are caused by the struggle between the two contradictory elements
        contained in a thing. When the thing is in the first state of motion, it is undergoing
        only quantitative and not qualitative change and consequently presents the outward
        appearance of being at rest. When the thing is in the second state of motion, the
        quantitative change of the first state has already reached a culminating point and gives
        rise to the dissolution of the thing as an entity and thereupon a qualitative change
        ensues, hence the appearance of a conspicuous change. Such unity, solidarity, combination,
        harmony, balance, stalemate, deadlock, rest, constancy, equilibrium, solidity, attraction,
        etc., as we see in daily life, are all the appearances of things in the state of
        quantitative change. On the other hand, the dissolution of unity, that is, the destruction
        of this solidarity, combination, harmony, balance, stalemate, deadlock, rest, constancy,
        equilibrium, solidity and attraction, and the change of each into its opposite are all the
        appearances of things in the state of qualitative change, the transformation of one
        process into another. Things are constantly transforming themselves from the first into
        the second state of motion; the struggle of opposites goes on in both states but the
        contradiction is resolved through the second state. That is why we say that the unity of
        opposites is conditional, temporary and relative, while the struggle of mutually exclusive
        opposites is absolute. 
        When we said above that two opposite things can coexist in a single entity and can
        transform themselves into each other because there is identity between them, we were
        speaking of conditionality, that is to say, in given conditions two contradictory things
        can be united and can transform themselves into each other, but in the absence of these
        conditions, they cannot constitute a contradiction, cannot coexist in the same entity and
        cannot transform themselves into one another. It is because the identity of opposites
        obtains only in given conditions that we have said identity is conditional and relative.
        We may add that the struggle between opposites permeates a process from beginning to end
        and makes one process transform itself into another, that it is ubiquitous, and that
        struggle is therefore unconditional and absolute. 
        The combination of conditional, relative identity and unconditional, absolute struggle
        constitutes the movement of opposites in all things. 
        We Chinese often say, "Things that oppose each other also complement each
        other." [23] That is, things opposed to each other have identity.
        This saying is dialectical and contrary to metaphysics. "Oppose each other"
        refers to the mutual exclusion or the struggle of two contradictory aspects.
        "Complement each other" means that in given conditions the two contradictory
        aspects unite and achieve identity. Yet struggle is inherent in identity and without
        struggle there can be no identity. 
        In identity there is struggle, in particularity there is universality, and in
        individuality there is generality. To quote Lenin, "... there is an absolute in the
        relative." [24] 
         
        VI. THE PLACE OF ANTAGONISM IN CONTRADICTION 
        The question of the struggle of opposites includes the question
        of what is antagonism. Our answer is that antagonism is one form, but not the only form,
        of the struggle of opposites. 
        In human history, antagonism between classes exists as a particular manifestation of
        the struggle of opposites. Consider the contradiction between the exploiting and the
        exploited classes. Such contradictory classes coexist for a long time in the same society,
        be it slave society, feudal society or capitalist society, and they struggle with each
        other; but it is not until the contradiction between the two classes develops to a certain
        stage that it assumes the form of open antagonism and develops into revolution. The same
        holds for the transformation of peace into war in class society. 
        Before it explodes, a bomb is a single entity in which opposites coexist in given
        conditions. The explosion takes place only when a new condition, ignition, is present. An
        analogous situation arises in all those natural phenomena which finally assume the form of
        open conflict to resolve old contradictions and produce new things. 
        It is highly important to grasp this fact. It enables us to understand that revolutions
        and revolutionary wars are inevitable in class society and that without them, it is
        impossible to accomplish any leap in social development and to overthrow the reactionary
        ruling classes and therefore impossible for the people to win political power. Communists
        must expose the deceitful propaganda of the reactionaries, such as the assertion that
        social revolution is unnecessary and impossible. They must firmly uphold the
        Marxist-Leninist theory of social revolution and enable the people to understand that
        social revolution is not only entirely necessary but also entirely practicable, and that
        the whole history of mankind and the triumph of the Soviet Union have confirmed this
        scientific truth. 
        However, we must make a concrete study of the circumstances of each specific struggle
        of opposites and should not arbitrarily apply the formula discussed above to everything.
        Contradiction and struggle are universal and absolute, but the methods of resolving
        contradictions, that is, the forms of struggle, differ according to the differences in the
        nature of the contradictions. Some contradictions are characterized by open antagonism,
        others are not. In accordance with the concrete development of things, some contradictions
        which were originally non-antagonistic develop into antagonistic ones, while others which
        were originally antagonistic develop into nonantagonistic ones. 
        As already mentioned, so long as classes exist, contradictions between correct and
        incorrect ideas in the Communist Party are reflections within the Party of class
        contradictions. At first, with regard to certain issues, such contradictions may not
        manifest themselves as antagonistic. But with the development of the class struggle, they
        may grow and become antagonistic. The history of the Communist Party of the Soviet Union
        shows us that the contradictions between the correct thinking of Lenin and Stalin and the
        fallacious thinking of Trotsky, Bukharin and others did not at first manifest themselves
        in an antagonistic form, but that later they did develop into antagonism. There are
        similar cases in the history of the Chinese Communist Party. At first the contradictions
        between the correct thinking of many of our Party comrades and the fallacious thinking of
        Chen Tu-hsiu, Chang Kuo-tao and others also did not manifest themselves in an antagonistic
        form, but later they did develop into antagonism. At present the contradiction between
        correct and incorrect thinking in our Party does not manifest itself in an antagonistic
        form, and if comrades who have committed mistakes can correct them, it will not develop
        into antagonism. Therefore, the Party must on the one hand wage a serious struggle against
        erroneous thinking, and on the other give the comrades who have committed errors ample
        opportunity to wake up. This being the case, excessive struggle is obviously
        inappropriate. But if the people who have committed errors persist in them and aggravate
        them, there is the possibility that this contradiction will develop into antagonism. 
        Economically, the contradiction between town and country is an extremely antagonistic
        one both in capitalist society, where under the rule of the bourgeoisie the towns
        ruthlessly plunder the countryside, and in the Kuomintang areas in China, where under the
        rule of foreign imperialism and the Chinese big comprador bourgeoisie the towns most
        rapaciously plunder the countryside. But in a socialist country and in our revolutionary
        base areas, this antagonistic contradiction has changed into one that is non-antagonistic;
        and when communist society is reached it will be abolished. 
        Lenin said, "Antagonism and contradiction are not at all one and the same. Under
        socialism, the first will disappear, the second will remain." [25]
        That is to say, antagonism is one form, but not the only form, of the struggle of
        opposites; the formula of antagonism cannot be arbitrarily applied everywhere. 
         
        VII. CONCLUSION 
        We may now say a few words to sum up. The law of contradiction
        in things, that is, the law of the unity of opposites, is the fundamental law of nature
        and of society and therefore also the fundamental law of thought. It stands opposed to the
        metaphysical world outlook. It represents a great revolution in the history of human
        knowledge. According to dialectical materialism, contradiction is present in all processes
        of objectively existing things and of subjective thought and permeates all these processes
        from beginning to end; this is the universality and absoluteness of contradiction. Each
        contradiction and each of its aspects have their respective characteristics; this is the
        particularity and relativity of contradiction. In given conditions, opposites possess
        identity, and consequently can coexist in a single entity and can transform themselves
        into each other; this again is the particularity and relativity of contradiction. But the
        struggle of opposites is ceaseless, it goes on both when the opposites are coexisting and
        when they are transforming themselves into each other, and becomes especially conspicuous
        when they are transforming themselves into one another; this again is the universality and
        absoluteness of contradiction. In studying the particularity and relativity of
        contradiction, we must give attention to the distinction between the principal
        contradiction and the non-principal contradictions and to the distinction between the
        principal aspect and the non-principal aspect of a contradiction; in studying the
        universality of contradiction and the struggle of opposites in contradiction, we must give
        attention to the distinction between the different forms of struggle. Otherwise we shall
        make mistakes. If, through study, we achieve a real understanding of the essentials
        explained above, we shall be able to demolish dogmatist ideas which are contrary to the
        basic principles of Marxism-Leninism and detrimental to our revolutionary cause, and our
        comrades with practical experience will be able to organize their experience into
        principles and avoid repeating empiricist errors. These are a few simple conclusions from
        our study of the law of contradiction. 
         
        NOTES 
        [1] V. I. Lenin, "Conspectus of Hegel's Lectures on the
        History of Philosophy" Collected Works, Russ. ea., Moscow, 1958, Vol. XXXVIII, p.
        249. 
        [2] In his essay "On the Question of Dialectics", Lenin
        said, "The splitting in two of a single whole and the cognition of its contradictory
        parts (see the quotation from Philo on Heraclitus at the beginning of Section 3 'On
        Cognition' in Lassalle's book on Heraclitus) is the essence (one of the
        'essentials', one of the principal, if not the principal, characteristics or features) of
        dialectics." (Collected Works, Russ. ea., Moscow, 1958, Vol. XXXVIII, p. 357.)
        In his "Conspectus of Hegel's The Science of Logic", he said, "In
        brief, dialectics can be defined as the doctrine of the unity of opposites. This grasps
        the kernel of dialectics, but it requires explanations and development." (Ibid., p.
        215.) 
        [3] V. 1. Lenin, "On the Question of Dialectics", Coaected
        Works, Russ. ed., Moscow, 1958, Vol. XXXVIII, p. 358. 
        [4] A saying of Tung Chung-shu (179-104 B.C.), a well-known
        exponent of Confucianism in the Han Dynasty. 
        [5] Frederick Engels, "Dialectics. Quantity and Quality",
        Anti-Duhring, Eng. ed., FLPH, Moscow, 1959, p. 166. 
        [6] V. I. Lenin, "On the Question of Dialectics", Collected
        Works, Russ. ed., Moscow, 1958, Vol. XXXVIII, pp. 357-58 
        [7] Frederick Engels, op. cit., pp. 166-67. 
        [8] V. I. Lenin, "On the Question of Dialectics", Collected
        Works, Russ. ed., Moscow, 1958, Vol. XXXVIII, p. 3S7. 
        [9] Ibid., pp. 358-59 
        [10] See "Problems of Strategy in China's Revolutionary
        War." 
        [11] See "Problems of Strategy in China's Revolutionary
        War." 
        [12] Wei Cheng (A.D. 580-643) was a statesman and historian of the
        Tang Dynasty. 
        [13] Shui Hu Chuan (Heroes of the Marshes), a famous
        14th century Chinese novel, describes a peasant war towards the end of the Northern Sung
        Dynasty. Chu Village was in the vicinity of Liangshanpo, where Sung Chiang, leader of the
        peasant uprising and hero of the novel, established his base. Chu Chao-feng, the head of
        this village, was a despotic landlord. 
        [14] V. I. Lenin, "Once Again on the Trade Unions, the
        Present Situation and the Mistakes of Trotsky and Bukharin", Selected Works,
        Eng. ed., International Publishers, New York, 1943, Vol. IX, p. 66. 
        [15] V. I. Lenin, "What Is to Be Done?", Collected
        Works, Eng. ed., FLPH, Moscow, 1961, Vol. V, p. 369. 
        [16] V. I. Lenin, "Conspectus of Hegel's The Science of
        Logic", Collected Works, Russ. ea., Moscow, 1958, Vol. XXXVIII, pp. 97-98. 
        [17] Shan Hai Chug (Book of Mountains and Seas) was
        written in the era of the Warring States (403-221 B.C.). In one of its fables Kua Fu, a
        superman, pursued and overtook the sun. But he died of thirst, whereupon his staff was
        transformed into the forest of Teng. 
        [18] Yi is one of the legendary heroes of ancient China, famous
        for his archery. According to a legend in Huai Nan Tzu, compiled in the 2nd century
        B.C., there were ten suns in the sky in the days of Emperor Yao. To put an end to the
        damage to vegetation caused by these scorching suns, Emperor Yao ordered Yi to shoot them
        down. In another legend recorded by Wang Yi (2nd century A.D.), the archer is said to have
        shot down nine of the ten suns. 
        [19] Hsi Yu Chi (Pilgrimage to the West) is a 16th century novel,
        the hero of which is the monkey god Sun Wu-kung. He could miraculously change at will into
        seventy-two different shapes, such as a bird, a tree and a stone. 
        [20] The Strange Tales of Liao Chai, written by Pu
        Sung-ling in the 17th century, is a well-known collection of 431 tales, mostly about
        ghosts and fox spirits. 
        [21] Karl Marx, "Introduction to the Critique of Political
        Economy", A Contribution to the Critique of Political Economy, Eng. ed.,
        Chicago, 1904, pp. 310-11. 
        [22] V. I. Lenin, "On the Question of Dialectics", Collected
        Works, Russ. ed., Moscow, 1958, Vol. XXXVIII, p. 358. 
        [23] The saying "Things that oppose each other also
        complement each other" first appeared in the History of the Earlier Han Dynasty
        by Pan Ku, a celebrated historian in the 1st century A.D. It has long been a popular
        saying. 
        [24] V. I. Lenin, "On the Question of Dialectics", Collected
        Works, Russ. ea., Moscow, 1958, Vol. XXXVIII, p. 358. 
        [25] V. I. Lenin, "Remarks on N. I. Bukharin's Economics
        of the Transitional Period" Selected Works, Russ. ed., Moscow-Leningrad, 1931,
        Vol. XI, p. 357.