He that hath knowledge spareth his words.

I paint for myself. I don't know how to do anything else, anyway. Also I have to earn my living, and occupy myself.

I have often thought upon death, and I find it the least of all evils.

The worst solitute is to be destitute of true friendship.

It would be unsound fancy and self-contradictory to expect that things which have never yet been done can be done except by means which have never yet been tried.

Some books should be tasted, some devoured, but only a few should be chewed and digested thoroughly.

The desire of excessive power caused the angels to fall; the desire of knowledge caused men to fall.