I hold every man a debtor to his profession.

I feel that I am much freer if I'm on my own, but I'm sure that there are a lot of painters who would perhaps be even more inventive if they had people round them... I find that if I am on my own I can allow the paint to dictate to me. So the images that I'm putting down on the canvas dictate the thing to me and it gradually builds up and comes along.

Rather to excite your judgment briefly than to inform it tediously.

The human understanding of its own nature is prone to suppose the existence of more order and regularity in the world than it finds.

For many parts of Nature can neither be invented with sufficient subtlety, nor demonstrated with sufficient perspicuity, nor accommodated unto use with sufficient dexterity, without the aid and intervening of the mathematics, of which sort are perspective, music, astronomy, cosmography, architecture, engineery, and divers others.

Great art is deeply ordered. Even if within the order there may be enormously instinctive and accidental things, nevertheless they come out of a desire for ordering and for returning fact onto the nervous system in a more violent way.

Great changes are easier than small ones.