An intelligent being, is the active principle of all things. One must have renounced all common sense to doubt it, and it is a waste of time to try to prove such self evident truth.

Religious persecutors are not believers, they are rascals.

What good would it be to possess the whole universe if one were its only survivor?

He who pretends to look on death without fear lies. All men are afraid of dying, this is the great law of sentient beings, without which the entire human species would soon be destroyed.

I long remained a child, and I am still one in many respects.

Teach by doing whenever you can, and only fall back upon words when doing it is out of the question.

He who eats in idleness that which he himself has not earned, steals it; and a capitalist whom the state pays for doing nothing differs little in my eyes from a brigand, who lives at the expense of passers-by.