After painting comes Sculpture, a very noble art, but one that does not in the execution require the same supreme ingenuity as the art of painting, since in two most important and difficult particulars, in foreshortening and in light and shade, for which the painter has to invent a process, sculpture is helped by nature. Moreover, Sculpture does not imitate color which the painter takes pains to attune so that the shadows accompany the lights.

The greatest geniuses sometimes accomplish more when they work less.

To enjoy - to love a thing for its own sake and for no other reason.

Our life is made by the death of others.

Those who condemn the supreme certainty of mathematics feed on confusion, and can never silence the contradictions of the sophistical sciences which lead to eternal quackery.

The mind that engages in subjects of too great variety becomes confused and weakened.

O Time with your teethy years! You swallow up all things little by little in a slow-motion, wrinkling process of dying.