The Our Father contains all possible petitions; we cannot conceive of any prayer not already contained in it. It is to prayer what Christ is to humanity.

Nothing is less instructive than a machine.

The sea is not less beautiful in our eyes because we know that sometimes ships are wrecked by it.

A test of what is real is that it is hard and rough. Joys are found in it, not pleasure. What is pleasant belongs to dreams.

Imagination is always the fabric of social life and the dynamic of history. The influence of real needs and compulsions, of real interests and materials, is indirect because the crowd is never conscious of it.

There can be a true grandeur in any degree of submissiveness, because it springs from loyalty to the laws and to an oath, and not from baseness of soul.

In struggling against anguish one never produces serenity; the struggle against anguish only produces new forms of anguish.