A good painter has two main objects to paint, man and the intention of his soul.

Men of genius sometimes accomplish most when they work least, for they are thinking out inventions.

The discovery of a good wine is increasingly better for mankind than the discovery of a new star.

The boundaries of bodies are the least of all things.

One day the world will look upon research upon animals as it now looks upon research on human beings.

When Fortune comes, seize her in front with a sure hand, because behind she is bald.

Experience, the interpreter between creative nature and the human race, teaches the action of nature among mortals: how under the constraint of necessity she cannot act otherwise than as reason, who steers her helm, teaches her to act.