"Social progress can be measured by the social position of the female sex."

"Capital is dead labour, which, vampire-like, only lives by sucking living labour, and lives the more, the more labour it sucks."

"Philosophers have hitherto only interpreted the world in various ways; the point is to change it."

"The ideas of the ruling class are in every epoch the ruling ideas, i.e. the class which is the ruling material force of society, is at the same time its ruling intellectual force."

"A people without character, without any historical initiative, a people that has only been used as a tool by other nations, will achieve its freedom only by becoming a tool for a revolution that will …"