Religion is collective insanity.

There is only one power and one dictatorship whose organisation is salutary and feasible: it is that collective, invisible dictatorship of those who are allied in the name of our principle.

Theology created the fiction of Satan which represents the revolt if an infinite being against the existence of an absolute infinity, against God.

Destroy or be destroyed-there is no middle way! Let us then be the destroyers!

Everything that lives, does so under the categorical condition of decisively interfering in the life of someone else.

Every people, like every person, . . . has a right to be itself.

Idealism is the despot of thought, just as politics is the despot of will.