The three sources and three component parts of Marxism

Written in 1913 by V.I. Lenin. It was dedicated  to the Thirtieth Anniversary of Marx's death.

Throughout the civilized world the teachings of Marx evoke the utmost hostility and hatred of all bourgeois science (both official and liberal), which regards Marxism as a kind of “pernicious sect”. And no other attitude is to be expected, for there can be no “impartial” social science in a society based on class struggle. In one way or another, all official and liberal science defends wage-slavery, whereas Marxism has declared relentless war on that slavery. To expect science to be impartial in a wage-slave society is as foolishly naive as to expect impartiality from manufacturers on the question of whether workers’ wages ought not to be increased by decreasing the profits of capital.

But this is not all. The history of philosophy and the history of social science show with perfect clarity that there is nothing resembling “sectarianism” in Marxism, in the sense of its being a hidebound, petrified doctrine, a doctrine which arose away from the high road of the development of world civilization. On the contrary, the genius of Marx consists precisely in his having furnished answers to questions already raised by the foremost minds of mankind. His doctrine emerged as the direct and immediate continuation of the teachings of the greatest representatives of philosophy, political economy and socialism.