One should never trust a person who, while assuring you of something, puts his hands on his heart.

We are obliged to regard many of our original minds as crazy at least until we have become as clever as they are.

Nothing makes one old so quickly as the ever-present thought that one is growing older.

What is called an acute knowledge of human nature is mostly nothing but the observer's own weaknesses reflected back from others.

There are people who possess not so much genius as a certain talent for perceiving the desires of the century, or even of the decade, before it has done so itself.

After all, is our idea of God anything more than personified incomprehensibility?

Probably no invention came more easily to man than heaven.