The children of God should not have any other country here below but the universe itself, with the totality of all the reasoning creatures it ever has contained, contains, or ever will contain. That is the native city to which we owe our love.

Contradiction itself, far from always being a criterion of error, is sometimes a sign of truth.

We are only geometricians of matter; the Greeks were, first of all, geometricians in the apprenticeship to virtue.

Even if our efforts of attention seem for years to be producing no result, one day a light that is in exact proportion to them will flood the soul.

Religion as a source of consolation is an obstacle to true faith.

A mind enclosed in language is in prison.

War, which perpetuates itself under the form of preparation for war, has once and for all given the State an important role in production.