If a man devotes himself to art, much evil is avoided that happens otherwise if one is idle.
The artist is chosen by God to fulfill his commands and must never be overwhelmed by public opinion.
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.
Sane judgment abhors nothing so much as a picture perpetrated with no technical knowledge, although with plenty of care and diligence.
As I grew older, I realized that it was much better to insist on the genuine forms of nature, for simplicity is the greatest adornment of art.