Silence is the sleep that nourishes wisdom.

I have to hope that my instincts will do the right thing, because I can't erase what I have done. And if I drew something first, then my paintings would be illustrations of drawings.

For friends... do but look upon good Books: they are true friends, that will neither flatter nor dissemble.

The divisions of science are not like different lines that meet in one angle, but rather like the branches of trees that join in one trunk.

Things alter for the worse spontaneously, if they be not altered for the better designedly.

I would live to study, not study to live.

That which above all other yields the sweetest smell in the air is the violet.