Communism begins where atheism begins.

Civil servants and priests, soldiers and ballet-dancers, schoolmasters and police constables, Greek museums and Gothic steeples, civil list and services list -- the common seed within which all these fabulous beings slumber in embryo is taxation.

All history is nothing but a continuous transformation of human nature.

In a word, the free trade system hastens the social revolution. It is in this revolutionary sense alone, gentlemen, that I vote in favor of free trade.

Advances in science help to delegitimize the rule of kings and the power of the Church.

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.

A man cannot become a child again, or he becomes childish.