What's a joy to the one is a nightmare to the other.

No one can be good for long if goodness is not in demand.

I don't like where I'm going and I don't like where I've been. Why am I in a hurry?

People remain what they are even if their faces fall apart.

People are too durable, that's their main trouble. They can do too much to themselves, they last too long.

Bank robbery is an initiative of amateurs. True professionals establish a bank.

Art and science work in quite different ways: agreed. But, bad as it may sound, I have to admit that I cannot get along as an artist without the use of one or two sciences. ... In my view, the great and complicated things that go on in the world cannot be adequately recognized by people who do not use every possible aid to understanding.