"Those Socialists and social revolutionaries who regard the hardships and struggles of society as an absolute evil and plan the construction of a society comprised solely of good elements, have not grasped the meaning of the history of mankind. They think abstractly. They misjudge both the past and the present.

"Hence to form a correct judgment of production under feudalism one must consider it a method of production based upon contradiction. One must show how wealth was produced within this contradiction, how productive power developed contemporaneously with the antagonism of classes, how one of these classes, the bad side, the social evil, constantly increased until the material conditions for its liberation were fully ripe.

"Does that not show clearly enough that the means of production, the conditions under which productive power is developed, are anything but eternal laws, that they rather correspond to a definite stage in the evolution of mankind and of its productive power, and that a variation in the productive power of mankind necessarily brings about a variation in its conditions of production?

"The middle class begins with a proletariat, which in its turn is itself a remnant of the feudal proletariat. In the course of its historical development the middle class necessarily develops its contradictory character, which on its first appearance is more or less veiled, existing only in a latent form. In proportion as the middle class develops, there develops in its bosom a new proletariat, a modern proletariat; and a struggle arises between the proletarian class and the middle class, a struggle which, before being felt, observed, estimated, understood, acknowledged, and finally openly proclaimed on both sides, issues in the meanwhile only in partial and transitory conflicts and acts of destruction."

In a special chapter Marx shows the necessity and the historical significance of the Trade Unions, which in spite of all the apprehensions and warnings of Utopians and Economists the workers have gone on establishing and perfecting, in order to be able to withstand the domination of capital. That means the gathering together of the divided interests and activities of the workers in a vast class movement, standing in opposition to the middle class; which, however, does not exclude the possibility of conflicting interests within the classes themselves, though these shall be put aside as soon as class is brought against class:

"From day to day it becomes clearer then that the conditions of production, among which the middle class moves, have not a simple, uniform character but one which involves conflicting elements; that the same conditions which produce wealth produce also poverty; that the same conditions which tend to the development of productive power develop also the power of repression; that these conditions only create bourgeois wealth, i.e., the wealth of the middle class, at the cost of the continued destruction of the wealth of individual members of this class and the creation of an ever-increasing proletariat."—("Poverty of Philosophy," 1885, pp. 116-118, 177 sq.)

This antithetical character of capitalist society has for its effect that the political economists, who are the philosophers of the existing order, lose their bearings, while the Socialists, who are the philosophers of the proletariat, look round for means to relieve the distress. They condemn class struggles,[4] build Utopias and plan schemes of salvation, whereas the only real solution, because it is the only one which arises from the actual conditions, must be to further the organisation of the oppressed class and make it conscious of the objects of its struggles. For out of these struggles the new society will arise, and that, of course, can only happen when productive power has reached a high stage of development. Or as Marx himself proceeds:

"An oppressed class is a vital condition of any society founded upon class antagonism. The liberation of the oppressed class necessarily includes, therefore, the creation of a new society. In order that the oppressed class may be able to free itself, a stage must be reached in which the already acquired powers of production and the prevailing social institutions can no longer exist side by side. Of all the instruments of production, the greatest productive force is the revolutionary class itself. The organisation of the revolutionary elements as a class presupposes the existence in perfected form of all the productive forces that could in any way be developed in the bosom of the old society. Does this mean that after the collapse of the old order of society there will be a new class domination culminating in a new political power? The condition of the emancipation of the working class is the abolition of all classes, as the condition of the emancipation of the third estate, of the middle class, was the abolition of all the three estates. The working class will, in the course of its evolution, replace the old middle-class society by an association excluding classes and their antagonism, and there will no longer be any real political power,[5] because it is just this political power which is the official expression of class antagonism within the community.

"Meanwhile the antagonism between proletariat and bourgeoisie is a struggle of class against class, a struggle which, when brought to its highest expression, means a complete revolution. And can one indeed be surprised that a society founded upon class antagonism should, at its final dissolution, issue in brutal conflict and collision of man against man? Let it not be said that the social movement excludes the political. There never was a political movement which was not at the same time a social movement.

"Only in an order of things where there are no classes and no class antagonism will social evolution cease to be political revolution. Until then the last word of social science on the eve of every general reconstruction of society must ever be: 'Fight or die; bloody war or annihilation. Thus are we confronted with the inexorable question.'—(George Sand)."