The only substance properly so called is the soul.

It is dangerous to abandon one's self to the luxury of grief; it deprives one of courage, and even of the wish for recovery.

Thought is a kind of opium; it can intoxicate us, while still broad awake; it can make transparent the mountains and everything that exists.

Clever people will recognize and tolerate nothing but cleverness.

The man who insists upon seeing with perfect clearness before he decides, never decides. Accept life, and you must accept regret.

Faith is certitude without proofs ... Faith is a sentiment, for it is a hope; it is an instinct, for it precedes all outward instruction.

Criticism is above all a gift, an intuition, a matter of tact and flair; it cannot be taught or demonstrated--it is an art.