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.

A lie faces God and shrinks from man.

I think that one of the things is that, if you are going to decide to be a painter, you have got to decide that you are not going to be afraid of making a fool of yourself. I think another thing is to be able to find subjects which really absorb you to try and do. I feel that without a subject you automatically go back into decoration because you haven't got the subject which is always eating into you to bring it back - and the greatest art always returns you to the vulnerability of the human situation.

For the chain of causes cannot by any force be loosed or broken, nor can nature be commanded except by being obeyed.

Many secrets of art and nature are thought by the unlearned to be magical.

Lastly, I would address one general admonition to all: that they consider what are the true ends of knowledge, and that they seek it not either for pleasure of the mind, or for contention, or for superiority to others, or for profit, or fame, or power, or any of these inferior things: but for the benefit and use of life; and that they perfect and govern it in charity.

Generally he perceived in men of devout simplicity this opinion: that the secrets of nature were the secrets of God, part of that glory into which man is not to press too boldly.