"Anyone who knows anything of history knows that great social changes are impossible without feminine upheaval. Social progress can be measured exactly by the social position of the fair sex the ugly ones included."
"Capitalist production therefore develops technology and the combining together of various processes into a social whole only by sapping the original sources of all wealth - the soil and the labourer."
"In a higher phase of communist society... only then can the narrow horizon of bourgeois right be fully left behind and society inscribe on its banners: from each according to his ability to each according to his needs."
"The product of mental labor - science - always stands far below its value because the labor-time necessary to reproduce it has no relation at all to the labor-time required for its original production."
"We should not say that one mans hour is worth another mans hour but rather that one man during an hour is worth just as much as another man during an hour. Time is everything man is nothing: he is at the most times carcass."