A bad memory is the mother of invention.

Intellectuals are people who believe that ideas are of more importance than values. That is to say, their own ideas and other people's values.

One road to happiness is to cultivate curiosity about everything. Not only about people but about subjects, not only about the arts but about history and foreign customs. Not only about countries and cities, but about plants and animals. Not only about lichened rocks and curious markings on the bark of trees, but about stars and atoms. Not only about your friends but about that strange labyrinth we inhabit which we call ourselves. Then, if we do that, we will never suffer a moment's boredom.

Those who have money think that the most important thing in the world is love. The poor know it is money.

Do not believe those persons who say they have never been jealous. What they mean is that they have never been in love.

You generally hear that what a man doesn't know doesn't hurt him, but in business what a man doesn't know does hurt.

Poets and painters are outside the class system, or rather they constitute a special class of their own, like the circus people and the Gypsies.