An idea is a light turned on in a man's soul. Comic-strip artists are in the habit of representing it by means of a light bulb flashing on, above the head of a character who has suddenly grasped an idea. In simple, primitive terms, this is an appropriate symbol.

Man's unique reward, however, is that while animals survive by adjusting themselves to their background, man survives by adjusting his background to himself.

Money is only a tool. It will take you wherever you wish, but it will not replace you as the driver.

I never found beauty in longing for the impossible and never found the possible to be beyond my reach.

The only proper purpose of a government is to protect man's rights, which means: to protect him from physical violence.

The more neurotic and evasive a person is, the shorter the range of his interests.

There's nothing of any importance in life — except how well you do your work. Nothing. Only that. Whatever else you are, will come from that. It's the only measure of human value.