Algebra and money are essentially levelers; the first intellectually, the second effectively.

When an apprentice gets hurt, or complains of being tired, the workmen and peasants have this fine expression: "It is the trade entering his body." Each time that we have some pain to go through, we can say to ourselves quite truly that it is the universe, the order and beauty of the world, and the obedience of God that are entering our body.

science has now been for a long time - and to an ever-increasing extent - a collective enterprise. Actually, new results are always, in fact, the work of specific individuals; but, save perhaps for rare exceptions, the value of any result depends on such a complex set of interrelations with past discoveries and possible future researches that even the mind of the inventor cannot embrace the whole.

All the Freudian system is impregnated with the prejudice which it makes it its mission to fight -- the prejudice that everything sexual is vile.

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

The real sin of idolatry is always committed on behalf of something similar to the State.

Art has no immediate future, because all art is collective and there is no more collective life.