We should consider every day lost on which we have not danced at least once.

There is a universal need to exercise some kind of power, or to create for one's self the appearance of some power, if only temporarily, in the form of intoxication.

He who knows not how to plant his will in things at least endows them with some meaning: that is to say, he believes that a will is already present in them (A principle of faith.)

The essence of all beautiful art, all great art, is gratitude.

This mother needs happy, reputable children, and that one needs unhappy ones: otherwise she cannot show her kindness as a mother.

One's own self is well hidden from one's own self; of all mines of treasure, one's own is the last to be dug up.

Evolution does not make happiness its goal; it aims simply at evolution and nothing else.