It is here that differences of opinion may emerge: but must this really come to "strife" and "warfare"? May we not hope that, through love of mankind, or sympathy, or interest in the welfare of the whole, or some such noble motive, each class will freely divest itself of such of its privileges as stand in the way of others? I have already had occasion in another place to express my opinion on this point—that I look upon such well-intentioned judgment of average human nature as in contradiction with actual life. I have referred to the fact that conclusive proof for or against such a conception cannot be presented; that the final ground of decision rests in the depths of personal conviction on the part of the individual. But what offers some proof for the justification of the realistic opinion presented by me is the circumstance that history has as yet given no example of a free divestment of class privilege; at least I will say that every instance claimed as such may easily be invalidated. On the other side we have innumerable instances in history where such reform has been begun by well-meaning friends of humanity, theorists, only to be shattered soon on the rocher de bronze of the strong self-interest of the threatened dominant class. They eagerly hold up before us unbelievers the night of the 4th of August, 1789, and they forget the hundred burning castles in France. They remind us of the Prussian agrarian reforms, and forget not only the French Revolution but also the Declaration of 1816. They remind us—but why add illustrations? Let such men prove authentically a single case in history in which a social class has against its own interests and out of altruistic motives made an essential concession. Certainly there have been conspicuous individuals who have done this; why not? We see this daily. But a whole class—never! If this is so, then the word of the great realist must be true, that "only strength conquers." So we find as the conclusion of our thought, first a difference of classes, then class interests, then class opposition, finally class strife. It is thus that Marx would have developed his theory of class strife, and easily, if he had chosen to proceed upon a psychological foundation.

As we now turn to this theory itself and its significance for the social movement we are obliged, I think, to concede that the entrance of Karl Marx was a decisive turning-point in this agitation, because through him it was based upon a fundamentally changed conception of history and humanity. This change is occasioned by the fact that, in place of an idealistic, or rather partisan, way of looking at things, a realistic vision obtains, and thus for the social movement the idea of "revolution" passes into the thought of "evolution." The spirit of the nineteenth century supplants the spirit of the preceding centuries. You remember how I sought to make clear to you the essence of this spirit in connection with the teachings of the utopists; if I may be allowed to refer to it again, it is that idealistic conception of man and life,[1] cherished now only by the scholars, that faith in humanity as good by nature, that belief that men so long as they are not led astray by the mistake or malice of individual bad men will live in the most affectionate peace with their brethren; it is that belief in a "natural order" of the past and future—that rock-fast confidence that only explanation and exhortation are needed in order to bring men out of this vale of tears to the happy islands of the blest. This is that faith in the power of eternal love which through its own force shall overcome the bad, and help the good to victory. This it was that, though the leaders were not conscious of it, really lay at the bottom of all political and social agitation until the middle of our century; this it is that, in my opinion, as I have already said, still slumbers in the lap of anarchism, even to-day as an instinct. This fundamental tendency is now directly reversed; the belief in a humanity good by nature gives place to the conviction that man is of himself ruled by no noble motives, that he carries within himself the bête humaine even in all culture and in spite of all "advance." Hence the conclusion: that a man, in order to accomplish anything in the world, must before all call upon "interest"—a normal and material instinct. For it is the most important conclusion for the fate of the social movement, that now "interest" rules in the world; that where anything is to be done, or a class, like the proletariat, is to be emancipated, a man needs some weapon stronger than the theory of "eternal love" against the interest of the capitalist class, and must present force against force, might armed by "interest." At the end of all thought upon this matter lies this consideration, which leads not only to the theory, but as well to the practice, of class strife. Combat is the solution of the difficulty for this hard and unlovely proletarian generation which has grown up since the middle of our century; not peace, not reconciliation, not a general brotherhood—but battle. That this strife is no longer open warfare, like street riot, does not alter the fact that it is really strife. Out of this is to come a generation of men qualified to live and work in an order of society higher than the present capitalistic order.

It is this that I call the realistic conception of the social movement; and there is no doubt that it is the outcome of that Marxian theory of the world and society which I have just attempted to sketch. Only thus could the social-political realism, which heretofore has been proclaimed in a limited way, now arise as the principle of the whole social movement.

It is this social-political realism which gives the finishing stroke to all utopism and revolutionism. The insurrectionists in Lyons and the Chartist revolutionaries were both utopists—for they shed their blood and yet only strengthened the reaction. The Putschists, Clubists, and Blanquists were utopists, who through conspiracies and street riots would through all time control economic development. Not less utopian were those "geniuses" who offered exchange banks or the Organisation du travail or such remedies. Utopists also were those who believed in the power of all kinds of schemes. Finally, utopists were all those kindly souls who hoped to allay and overcome the sufferings of the proletariat by an appeal to the good hearts of the friends of humanity. Karl Marx has succeeded in freeing us from the use of empty phrases in the sphere of social politics.

Let us now in closing recapitulate the points wherein I see the historic significance of Marx's teaching for the social movement. Marx points out as its object the communisation of the means of production, as its way the struggle between classes; he erects these two as the main pillars upon which the whole structure must be built. He secured for these principles general acceptance; and he succeeded in this without preventing the development of national and other peculiarities. In placing the social movement in the flow of historic development he brings it theoretically into harmony with the objective and subjective factors of history, he bases it upon actual conditions of economic life and of human endowment, he shows its economic and psychological features.

Thus I look at Marx, when I attempt to fathom the spirit of his teaching; this is the deep meaning of Marxism.

There is no doubt that, according to the common idea, Marx and Engels, who must always be named with him, appear in a light essentially different from that which I have attempted to show to you. In general these men have been looked upon, not only as different from what I have stated, but as in a bad sense the very opposite of social realists; namely, as the father and the guardian of the worst kind of revolutionary thought. And who would not apparently be justified in this belief, reading the writings of both these men? He reads of clanking chains which must be broken, of revolutions towards which man tends, of bloody battle and death and assassination. How does the matter really lie?

Marx himself once said, Moi je ne suis pas Marxiste, but he gave to these words a meaning different from the ordinary one, as I also do when I say that Marx and Engels have not always shown themselves consistent Marxists either in theory or in practice.

Doubtless there are inconsistencies in theory, contradictions of the fundamental thoughts, discrepancies which can have only one source—that is, an overwhelming revolutionary passion which obscures a vision otherwise so clear.

For example, I think of their unreasonable belief in what they call the "fall" of humanity through the introduction of the principle of private property, from which as they say history, and as well the forces of history, take their start; the astonished hearer asks himself, What impelled man to the introduction of this principle? I think, also, of the hypothesis of a strifeless condition of humanity after the introduction of socialism—and the like. Here, and throughout, the old dreams of a Paradise lost and regained, of a happy condition of humanity originally, come as a disturbing element into their new world of thought.