If you intend to make a living at drawing, by all means learn it [the rules of perspective] now, and do not have them bothering you and your work for the rest of your life.

I feel that talent means little unless coupled with an insatiable desire to give an excellent personal demonstration of ability...talent must be in company with a capacity for unlimited effort which provides the power that eventually hurdles the difficulties that would frustrate lukewarm enthusiasm.

Observation and study are necessary to achieve mastery of light and form

The difficulties of not knowing are always much greater than the effort of learning.

A head is not drawn until you can feel the unseen side.

To any man who has slaved to acquire skill in his art, it is most irritating to have his ability referred to as a “gift.”

To learn to draw is to draw and draw and draw.

It is ten per cent how you draw, and ninety per cent what you draw.

Art without color would lose much of its purpose.