The Communists have no need to introduce free love; it has existed almost from time immemorial.

The existence of the state is inseparable from the existence of slavery.

Communism begins where atheism begins.

The religious world is but a reflex of the real world.

The executive of the modern state is but a committee for managing the common affairs of the whole bourgeoisie.

Men make their own history, but they do not make it just as they please; they do not make it under circumstances chosen by themselves, but under circumstances directly encountered, given and transmitted from the past. The tradition of all the dead generations weighs like a nightmare on the brain of the living.

Go on, get out - last words are for fools who haven't said enough. To his housekeeper, who urged him to tell her his last words so she could write them down for posterity.