Nature, who permits no two leaves to be exactly alike, has given a still greater diversity to human minds. Imitation, then, is a double murder; for it deprives both copy and original of their primitive existence.

Who understands much, forgives much.

intellect is a sin that must be atoned for by leading exactly the life of those who have none.

Nothing recalls the past like music.

The only equitable manner in my opinion, of judging the character of a man is to examine if there are personal calculations in his conduct; if there are not, we may blame his manner of judging, but we are not the less bound to esteem him.

Scientific progress makes moral progress a necessity; for if man's power is increased, the checks that restrain him from abusing it must be strengthened.

It is difficult to grow old gracefully.