The wealthy man is the man whois much, not the one who has much

We know that violent measures against religion are nonsense; but this is an opinion: as socialism grows, religion will disappear. Its disappearance must be done by social development, in which education must play a part.

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.

Communism is the riddle of history solved, and it knows itself to be this solution.

Crack-brained meddling by the authorities [can] aggravate an existing crisis.

To be radical is to grasp things by the root.

Every provisional political set-up following a revolution requires a dictatorship, and an energetic dictatorship at that.