Do all the work you can; that is the whole philosophy of the good way of life.
Talent does whatever it wants to do. Genius does only what it can.
I live in company with a body, a silent companion, exacting and eternal.
The artist who aims at perfection in everything achieves it in nothing.
Experience has two things to teach. The first is that we must correct a great deal and the second, that we must not correct too much.
If you are not skillful enough to sketch a man jumping out of a window in the time it takes him to fall from the fourth storey to the ground, you will never be able to produce great works.