I know that previously I would not have dared to express myself so explicitly about so uncertain a matter. I can take this risk because I am now in my eighth decade, and the changing opinions of men scarcely impress me any more; the thoughts of the old masters are of greater value to me than the philosophical prejudices of the Western mind.

The only important thing is to follow nature. A tiger should be a good tiger; a tree, a good tree. So people should be people. But to know what people are, one must follow nature and go alone, admitting the importance of the unexpected. Still, nothing is possible without love. . . . For love puts one in a mood to risk everything, and not to withhold important elements.

The world will ask you who you are, and if you don't know, the world will tell you.

Psychiatrists classify a person as neurotic if he suffers from his problems in living, and a psychotic if he makes others suffer.

Securities, certitudes and peace do not lead to discoveries.

Science is the art of creating suitable illusions which the fool believes or argues against, but the wise man enjoys for their beauty or their ingenuity, without being blind to the fact that they are human veils and curtains concealing the abysmal darkness of the unknowable

The greatest sin is to be unconscious.