Painting is concerned with the ten things you can see: these are darkness and brightness, substance and color, form and place, remoteness and nearness, movement and rest.

To lie is vile, to tell truth is excellent, if not noble.

I am not poor. Poor are those who desire many things.

Among the great things which are found among us the existence of Nothing is the greatest.

There shall be wings! If the accomplishment be not for me, 'tis for some other. The spirit cannot die; and man, who shall know all and shall have wings.

Why are the bones of great fishes, and oysters and corals and various other shells and sea-snails, found on the high tops of mountains that border the sea, in the same way in which they are found in the depths of the sea?

Learning is the only thing the mind never exhausts, never fears, and never regrets.