Sight is the noblest sense of man.

Why has God given me such magnificent talent? It is a curse as well as a great blessing.

The artist is chosen by God to fulfill his commands and must never be overwhelmed by public opinion.

An artist of understanding and experience can show more of his great power and art in small things roughly and rudely done, than many another in a great work. A man may often draw something with his pen on a half sheet of paper in one day . . . . and it shall be fuller of art and better than another's great work whereon he hath spent a whole year's careful labor.

No single man can be taken as a model for a perfect figure, for no man lives on earth who is endowed with the whole of beauty.

And since geometry is the right foundation of all painting, I have decided to teach its rudiments and principles to all youngsters eager for art. . .

Geometry is the foundation of all painting.