Happiness does not lie in happiness, but in the achievement of it.

It is not possible to eat me without insisting that I sing praises of my devourer?

It is not the brains that matter most, but that which guides them — the character, the heart, generous qualities, progressive ideas.

Sometimes a man is intensely, even passionately, attached to suffering — that is a fact.

... you can never be sure of what has passed between husband and wife or lover and mistress.

Inventors and geniuses have almost always been looked on as no better than fools at the beginning of their career, and very frequently at the end of it also.

There is no subject so old that something new cannot be said about it.