But how, at this rate, did Darwin succeed with the capitalists too?  It is not easy to make the best of both worlds when one of the worlds is preaching a Class War, and the other vigorously practising it.  The explanation is that Darwinism was so closely related to Capitalism that Marx regarded it as an economic product rather than as a biological theory.  Darwin got his main postulate, the pressure of population on the available means of subsistence, from the treatise of Malthus on Population, just as he got his other postulate of a practically unlimited time for that pressure to operate from the geologist Lyell, who made an end of Archbishop Ussher’s Biblical estimate of the age of the earth as 4004 B.C. plus A.D.  The treatises of the Ricardian economists on the Law of Diminishing Return, which was only the Manchester School’s version of the giraffe and the trees, were all very fiercely discussed when Darwin was a young man.  In fact the discovery in the eighteenth century by the French Physiocrats of the economic effects of Commercial Selection in soils and sites, and by Malthus of a competition for subsistence which he attributed to pressure of population on available subsistence, had already brought political science into that unbreathable atmosphere of fatalism which is the characteristic blight of Darwinism.  Long before Darwin published a line, the Ricardo-Malthusian economists were preaching the fatalistic Wages Fund doctrine, and assuring the workers that Trade Unionism is a vain defiance of the inexorable laws of political economy, just as the Neo-Darwinians were presently assuring us that Temperance Legislation is a vain defiance of Natural Selection, and that the true way to deal with drunkenness is to flood the country with cheap gin and let the fittest survive.  Cobdenism is, after all, nothing but the abandonment of trade to Circumstantial Selection.

It is hardly possible to exaggerate the importance of this preparation for Darwinism by a vast political and clerical propaganda of its moral atmosphere.  Never in history, as far as we know, had there been such a determined, richly subsidized, politically organized attempt to persuade the human race that all progress, all prosperity, all salvation, individual and social, depend on an unrestrained conflict for food and money, on the suppression and elimination of the weak by the strong, on Free Trade, Free Contract, Free Competition, Natural Liberty, Laisser-faire:  in short, on ‘doing the other fellow down’ with impunity, all interference by a guiding government, all organization except police organization to protect legalized fraud against fisticuffs, all attempt to introduce human purpose and design and forethought into the industrial welter, being ‘contrary to the laws of political economy.’  Even the proletariat sympathized, though to them Capitalist liberty meant only wage slavery without the legal safeguards of chattel slavery.  People were tired of governments and kings and priests and providences,