It is very rarely granted even to Nature herself to produce anything absolutely perfect in every part.

The function of the painter is to render... the visible surface so that at a certain distance... and position it appears... like the body itself.

Beauty is the adjustment of all parts proportionately so that one cannot add or subtract or change without impairing the harmony of the whole.

Painting is possessed of divine power, for not only does it make the absent present, but also makes the dead almost alive.

What is painting but the act of embracing, by means of art, the surface of the pool?

The Arts are learnt by reason and method; they are mastered by practice.

The greatest work of an artist is the history of a painting.