To be a winner you must want to win but must know of the chance of losing and must not fear of it.

The earth is moved from its position by the weight of a tiny bird resting upon it.

A good painter has two main objects to paint, man and the intention of his soul. The former is easy, the latter hard as he has to represent it by the attitude and movement of the limbs.

Fame alone raises herself to Heaven, because virtuous things are in favour with God.

Nature is constrained by the cause of her laws which dwell inborn in her. Variant: Nature is constrained by the order of her own law which lives and works within her.

Given the cause nature produces the effect in the briefest manner that it can employ.

Drawing is based upon perspective, which is nothing else than a thorough knowledge of the function of the eye.