The difficult part in an argument is not to defend one's opinion but rather to know it.

Without a family, man, alone in the world, trembles with the cold.

An old man, having retired from active life, regains the gaity and irresponsibility of childhood. He is ready to play, he cannot run with his son, but he can totter with his grandson. Our first and last steps have the same rhythm.

Sincerity is glass, discretion is diamond.

Artificial inflation of stocks must be considered a crime as serious as counterfeiting, which it closely resembles.

The need to express one's self in writing springs from a maladjustment of life, or from an inner conflict which the adolescent (or the grown man) cannot resolve in action.

A happy marriage is a long conversation which always seems too short.