The Open Society and Its Enemies (Princeton Classics)

by Karl Popper

A concise formulation of Marx’s opposition to psychologism1, i.e. to the plausible doctrine that all laws of social life must be ultimately reducible to the psychological laws of ‘human nature’, is his famous epigram: ‘It is not the consciousness of man that determines his existence—rather, it is his social existence that determines his consciousness.’2

I do not wish to imply that conspiracies never happen. On the contrary, they are typical social phenomena. They become important, for example, whenever people who believe in the conspiracy theory get into power. And people who sincerely believe that they know how to make heaven on earth are most likely to adopt the conspiracy theory, and to get involved in a counter-conspiracy against non-existing conspirators.

Marx did not speak of ‘psychologism’, nor did he criticize it systematically; nor was it Mill whom he had in mind in the epigram quoted at the beginning of this chapter. The force of this epigram is directed, rather, against ‘idealism’, in its Hegelian form.

historically, Marx developed certain of Hegel’s views concerning the superiority of society over the individual, and used them as arguments against other views of Hegel.

To see Marx presented in this way, that is to say, as an opponent of any psychological theory of society, may possibly surprise some Marxists as well as some anti-Marxists. For there seem to be many who believe in a very different story. Marx, they think, taught the all-pervading influence of the economic motive in the life of men; he succeeded in explaining its overpowering strength by showing that ‘man’s overmastering need was to get the means of living’1; he thus demonstrated the fundamental importance of such categories as the profit motive or the motive of class interest for the actions not only of individuals but also of social groups; and he showed how to use these categories for explaining the course of history Indeed, they think that the very essence of Marxism is the doctrine that economic motives and especially class interest are the driving forces of history, and that it is precisely this doctrine to which the name ‘materialistic interpretation of history’ or ‘historical materialism’ alludes, a name by which Marx and Engels tried to characterize the essence of their teaching.

but I have no doubt that they misinterpret Marx.

Whether or not such views are tenable and attractive, they certainly seem to have very little to do with the doctrine which Marx called ‘historical materialism’. It must be admitted that he sometimes speaks of such psychological phenomena as greed and the profit motive, etc., but never in order to explain history. He interpreted them, rather, as symptoms of the corrupting influence of the social system, i.e. of a system of institutions developed during the course of history; as effects rather than causes of corruption; as repercussions rather than moving forces of history.

The stage of history, he taught, is set in a social system which binds us all; it is set in the ‘kingdom of necessity’. (But one day the puppets will destroy this system and attain the ‘kingdom of freedom’.)

Yet such was Marx’s own philosophy of history, usually called ‘historical materialism’. It will be the main theme of these chapters. In the present chapter, I shall explain in broad outlines its ‘materialist’ or economic emphasis; after that, I shall discuss in more detail the rôle of class war and class interest and the Marxist conception of a ‘social system’.

Marx agrees with Mill in the belief that social phenomena must be explained historically, and that we must try to understand any historical period as a historical product of previous developments. The point where he departs from Mill is, as we have seen, Mill’s psychologism (corresponding to Hegel’s idealism). This is replaced in Marx’s teaching by what he calls materialism.

There is a well-known passage in Capital6, where Marx says that ‘in Hegel’s writing, dialectics stands on its head; one must turn it the right way up again …’ Its tendency is clear. Marx wished to show that the ‘head’, i.e. human thought, is not itself the basis of human life but rather a kind of superstructure, on a physical basis.

the dualism of Marx’s practical view of life. With Hegel he thinks that freedom is the aim of historical development. With Hegel he identifies the realm of freedom with that of man’s mental life. But he recognizes that we are not purely spiritual beings; that we are not fully free, nor capable of ever achieving full freedom, unable as we shall always be to emancipate ourselves entirely from the necessities of our metabolism, and thus from productive toil. All we can achieve is to improve upon the exhausting and undignified conditions of labour, to make them more worthy of man, to equalize them, and to reduce drudgery to such an extent that all of us can be free for some part of our lives.

Marx, in opposition to Hegel, contended that the clue to history, even to the history of ideas, is to be found in the development of the relations between man and his natural environment, the material world; that is to say, in his economic life, and not in his spiritual life. This is why we may describe Marx’s brand of historicism as economism, as opposed to Hegel’s idealism or to Mill’s psychologism.

Scientific history, which to him is identical with social science as a whole, must explore the laws according to which man’s exchange of matter with nature develops. Its central task must be the explanation of the development of the conditions of production.

historicism, the claim that the realm of social sciences coincides with that of the historical or evolutionary method, and especially with historical prophecy. This claim, I think, must be dismissed.

economism (or ‘materialism’), i.e. the claim that the economic organization of society, the organization of our exchange of matter with nature, is fundamental for all social institutions and especially for their historical development. This claim, I believe, is perfectly sound, so long as we take the term ‘fundamental’ in an ordinary vague sense, not laying too much stress upon it.

Then Lenin had some new ideas which may be briefly summarized in the slogan: ‘Socialism is the dictatorship of the proletariat, plus the widest introduction of the most modern electrical machinery.’ It was this new idea that became the basis of a development which changed the whole economic and material background of one-sixth of the world. In a fight against tremendous odds, uncounted material difficulties were overcome, uncounted material sacrifices were made, in order to alter, or rather, to build up from nothing, the conditions of production. And the driving power of this development was the enthusiasm for an idea. This example shows that in certain circumstances, ideas may revolutionize the economic conditions of a country, instead of being moulded by these conditions.

In accordance with this theory, Marx asserts that every social revolution develops in the following way. The material conditions of production grow and mature until they begin to conflict with the social and legal relations, outgrowing them like clothes, until they burst. ‘Then an epoch of social revolution opens’, Marx writes. ‘With the change in the economic foundation, the whole vast superstructure is more or less rapidly transformed … New, more highly productive relationships’ (within the superstructure) ‘never come into being before the material conditions for their existence have been brought to maturity within the womb of the old society itself.’

My criticism of Marx’s ‘historical materialism’ must certainly not be interpreted as expressing any preference for Hegelian ‘idealism’ over Marx’s ‘materialism’; I hope I have made it clear that in this conflict between idealism and materialism my sympathies are with Marx. What I wish to show is that Marx’s ‘materialist interpretation of history’, valuable as it may be, must not be taken too seriously; that we must regard it as nothing more than a most valuable suggestion to us to consider things in their relation to their economic background.

An important place among the various formulations of Marx’s ‘historical materialism’ is occupied by his (and Engels’) statement: ‘The history of all hitherto existing society is a history of class struggle.’1 The tendency of this statement is clear. It implies that history is propelled and the fate of man determined by the war of classes and not by the war of nations (as opposed to the views of Hegel and of the majority of historians).

How is the doctrine of class war related to the institutionalist doctrine of the autonomy of sociology discussed above2? At first sight it may seem that these two doctrines are in open conflict, for in the doctrine of class war, a fundamental part is played by class interest, which apparently is a kind of motive. But I do not think that there is any serious inconsistency in this part of Marx’s theory.

we can be free only in so far as we emancipate ourselves from the productive process. But now we shall learn that, in any hitherto existing society, we were not free even to that extent. For how could we, he asks, emancipate ourselves from the productive process? Only by making others do the dirty work for us. We are thus forced to use them as means for our ends; we must degrade them. We can buy a greater degree of freedom only at the cost of enslaving other men, by splitting mankind into classes; the ruling class gains freedom at the cost of the ruled class, the slaves.

This social net in which the classes are caught, and forced to struggle against one another, is what Marxism calls the economic structure of society, or the social system.

My criticism of Marx’s theory of the classes, as far as its historicist emphasis goes, follows the lines taken up in the last chapter. The formula ‘all history is a history of class struggle’ is very valuable as a suggestion that we should look into the important part played by class struggle in power politics as well as in other developments; this suggestion is the more valuable since Plato’s brilliant analysis of the part played by class struggle in the history of Greek city states was only rarely taken up in later times. But again, we must not, of course, take Marx’s word ‘all’ too seriously.

One of the dangers of Marx’s formula is that if taken too seriously, it misleads Marxists into interpreting all political conflicts as struggles between exploiters and exploited (or else as attempts to cover up the ‘real issue’, the underlying class conflict). As a consequence there were Marxists, especially in Germany, who interpreted a war such as the First World War as one between the revolutionary or ‘have-not’ Central Powers and an alliance of conservative or ‘have’ countries—a kind of interpretation which might be used to excuse any aggression. This is only one example of the danger inherent in Marx’s sweeping historicist generalization.

the most crucial point in our analysis as well as in our criticism of Marxism; it is Marx’s theory of the state and—paradoxical as it may sound to some—of the impotence of all politics.

Marx’s theory of the state can be presented by combining the results of the last two chapters. The legal or juridico-political system—the system of legal institutions enforced by the state—has to be understood, according to Marx, as one of the superstructures erected upon, and giving expression to, the actual productive forces of the economic system;

The most important consequence is that all politics, all legal and political institutions as well as all political struggles, can never be of primary importance. Politics are impotent. They can never alter decisively the economic reality.

Another important consequence of the theory is that, in principle, all government, even democratic government, is a dictatorship of the ruling class over the ruled. ‘The executive of the modern state’, says the Manifesto7, ‘is merely a committee for managing the economic affairs of the whole bourgeoisie …’ What we call a democracy is, according to this theory, nothing but that form of class dictatorship which happens to be most convenient in a certain historical situation.

we need not wonder that Marx did not think very highly of liberalism, and that he saw in parliamentary democracy nothing but a veiled dictatorship of the bourgeoisie.

Marx arrived at what may be termed (in Hegelian language) the distinction between formal and material freedom. Formal19 or legal freedom, although Marx does not rate it low, turns out to be quite insufficient for securing to us that freedom which he considered to be the aim of the historical development of mankind. What matters is real, i.e. economic or material, freedom. This can be achieved only by an equal emancipation from drudgery. For this emancipation, ‘the shortening of the labour day is the fundamental prerequisite’.

What have we to say to Marx’s analysis? Are we to believe that politics, or the framework of legal institutions, are intrinsically impotent to remedy such a situation, and that only a complete social revolution, a complete change of the ‘social system’, can help?

Marx discovered the significance of economic power; and it is understandable that he exaggerated its status. He and the Marxists see economic power everywhere. Their argument runs: he who has the money has the power; for if necessary, he can buy guns and even gangsters. But this is a roundabout argument. In fact, it contains an admission that the man who has the gun has the power. And if he who has the gun becomes aware of this, then it may not be long until he has both the gun and the money.

These considerations would be sufficient for refuting the dogmatic doctrine that economic power is more fundamental than physical power, or the power of the state.

Economic power is therefore entirely dependent on political and physical power.

The dogma that economic power is at the root of all evil must be discarded. Its place must be taken by an understanding of the dangers of any form of uncontrolled power. Money as such is not particularly dangerous. It becomes dangerous only if it can buy power, either directly, or by enslaving the economically weak who must sell themselves in order to live.

In order to establish this control, we must establish ‘merely formal freedom’. Once we have achieved this, and have learned how to use it for the control of political power, everything rests with us. We must not blame anybody else any longer, nor cry out against the sinister economic demons behind the scenes. For in a democracy, we hold the keys to the control of the demons. We can tame them. We must realize this and use the keys; we must construct institutions for the democratic control of economic power, and for our protection from economic exploitation.

economic intervention, even the piecemeal methods advocated here, will tend to increase the power of the state. Interventionism is therefore extremely dangerous. This is not a decisive argument against it; state power must always remain a dangerous though necessary evil. But it should be a warning that if we relax our watchfulness, and if we do not strengthen our democratic institutions while giving more power to the state by interventionist ‘planning’, then we may lose our freedom.

But it is not enough to say that our solution should be a minimum solution; that we should be watchful; and that we should not give more power to the state than is necessary for the protection of freedom. These remarks may raise problems, but they do not show a way to a solution. It is even conceivable that there is no solution; that the acquisition of new economic powers by a state—whose powers, as compared to those of its citizens, are always dangerously great—will make it irresistible.

while the political question of the day may demand a personal solution, all long-term policy—and especially all democratic long-term policy—must be conceived in terms of impersonal institutions.

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the problem of controlling the rulers, and of checking their powers, was in the main an institutional problem—the problem, in short, of designing institutions for preventing even bad rulers from doing too much damage.

Analogous considerations will apply to the problem of the control of the economic power of the state. What we shall have to guard against is an increase in the power of the rulers. We must guard against persons and against their arbitrariness. Some types of institution may confer arb...

We thus arrive at a distinction between two entirely different methods29 by which the economic intervention of the state may proceed. The first is that of designing a ‘legal framework’ of protective institutions (laws restricting the powers of the owner of an animal, or of a landowner, are an example). The second is that of empowering organs of the state to act—within certain limits—as they consider necessary for achieving the ends laid down by the rulers for the time being. We may describe the first procedure as ‘institutional’ or ‘indirect’ intervention, and the second as ‘personal’ or ‘direct’ intervention.

The obvious policy for all democratic intervention is to make use of the first method wherever this is possible, and to restrict the use of the second method to cases for which the first method is inadequate.

Economic historicism is the method applied by Marx to an analysis of the impending changes in our society. According to Marx, every particular social system must destroy itself, simply because it must create the forces which produce the next historical period.

In the first step of his argument, Marx analyses the method of capitalist production. He finds that there is a tendency towards an increase in the productivity of work, connected with technical improvements as well as with what he calls the increasing accumulation of the means of production. Starting from here, the argument leads him to the conclusion that in the realm of the social relations between the classes this tendency must lead to the accumulation of more and more wealth in fewer and fewer hands; that is to say, the conclusion is reached that there will be a tendency towards an increase of wealth and misery; of wealth in the ruling class, the bourgeoisie, and of misery in the ruled class, the workers.

In the second step of the argument, the result of the first step is taken for granted. From it, two conclusions are drawn; first, that all classes except a small ruling bourgeoisie and a large exploited working class are bound to disappear, or to become insignificant; secondly, that the increasing tension between these two classes must lead to a social revolution.

In the third step of the argument, the conclusions of the second step are taken for granted in their turn; and the final conclusion reached is that, after the victory of the workers over the bourgeoisie, there will be a society consisting of one class only, and, therefore, a classless society, a society without exploitation; that is to say, socialism.

I now proceed to the discussion of the third step, of the final prophecy of the coming of socialism. The main premises of this step, to be criticized in the next chapter but here to be taken for granted, are these: the development of capitalism has led to the elimination of all classes but two, a small bourgeoisie and a huge proletariat; and the increase of misery has forced the latter to revolt against its exploiters. The conclusions are, first, that the workers must win the struggle, secondly that, by eliminating the bourgeoisie, they must establish a classless society, since only one class remains.

the first conclusion follows from the premises (in conjunction with a few premises of minor importance which we need not question). Not only is the number of the bourgeoisie small, but their physical existence, their ‘metabolism’, depends upon the proletariat. The exploiter, the drone, starves without the exploited; in any case, if he destroys the exploited then he ends his own career as a drone.