— Vladimir Lenin Russian politician, led the October Revolution 1870 - 1924
Context: Throughout the civilised 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 naïve as to expect impartiality from manufacturers on the question of whether workers’ wages ought not to be increased by decreasing the profits of capital.
[http://www.marxists.org/archive/lenin/works/1913/mar/x01.htm The Three Sources and Three Component Parts of Marxism] (March 1913)