A single and distinct luminous body causes stronger relief in the objects than a diffused light; as may be seen by comparing one side of a landscape illuminated by the sun, and one overshadowed by clouds, and illuminated only by the diffused light of the atmosphere.

If you cause your ship to stop and place the head of a long tube in the water and place the outer extremity to your ear, you will hear ships at a great distance from you.

My works are the issue of simple and plain experience which is the true mistress.

The air moves like a river and carries the clouds with it; just as running water carries all the things that float upon it.

Study the science of art. Study the art of science. Develop your senses- especially learn how to see. Realize that everything connects to everything else.

There are four powers: memory and intellect, desire and covetousness. The two first are mental and the others sensual. The three senses sight, hearing, and smell cannot well be prevented; touch and taste not at all.