"Critical philosophy implies above all historical criticism. It dissolves the rigid, unhistorical, natural appearance of social institutions; it reveals their historical origins."

“In Marx the dialectical method aims at understanding society as a whole. Bourgeois thought concerns itself with objects that arise either from the process of studying phenomena in isolation, or from the division of labor and specialisation in the different disciplines.”

“Communist ethics make it the highest duty to accept the necessity to act wickedly. This, he said, was the greatest sacrifice the revolution asked from us. The conviction of the true communist is that evil transforms itself into bliss through the dialectics of historical evolution.”

“Only the dialectical conception of ... reality as a social process ... dissolves the fetishistic forms necessarily produced by the capitalist mode of production and enables us to see them as mere illusions which are not less illusory for being seen to be necessary.”

“From a very early stage the ideological history of the bourgeoisie was nothing but a desperate resistance to every insight into the true nature of the society it had created.”

“Admirers of the ‘purified’ Nietzsche have been hard put to unite his sanctioning of barbarity with an often subtle and rarefied cultural critique. But we can easily dispose of this dichotomy. In the first place, the union of ultra-refinement and brutality was by no means a personal quirk requiring psychological elucidation, but a universal, psychical-moral distinguishing mark of imperialist decadence.”

“The function of these unmediated concepts that have been derived from the fetishistic forms of objectivity is to make the phenomena of capitalist society appear as supra-rational historical essences.”