"Painting is an imitation by means of lines and colors, on some superfices, of everything that can be seen under the sun; its end is to please.
Principles that every man capable of reasoning may learn:—There can be nothing represented,
- Without light,
- Without form,
- Without color,
- Without distance,
- Without an instrument, or medium.
Things which are not to be learned, and which make an essential part of painting.