When counting, try not to mix chickens with blessings.

Nature is so delightful and abundant in its variations that among trees of the same kind there would not be found one which nearly resembles another, and not only the plants as a whole, but among their branches, leaves, and fruit, will not be found one which is precisely like another.

Feathers shall raise men even as they do birds towards heaven :- That is by letters written with their quills.

The motions of men must be such as suggest their dignity or their baseness.

Realize that everything connects to everything else.

A good painter is to paint two main things, men and the working of man's mind.

Those who are in love with practice without knowledge are like the sailor who gets into a ship without rudder or compass and who never can be certain whether he is going. Practice must always be founded on sound theory, and to this Perspective is the guide and the gateway; and without this nothing can be done well in the matter of drawing.