Those who agree with us may not be right, but we admire their astuteness.

Not a shred of evidence exists in favor of the idea that life is serious.

It is better to know some of the questions than all of the answers.

I am not young enough to know everything.

First you're an unknown, then you write one book and you move up to obscurity.

The trouble with being poor is that it takes up all of your time.

First there is a time when we believe everything, then for a little while we believe with discrimination, then we believe nothing whatever, and then we believe everything again - and, moreover, give reasons why we believe.

The worst thing about Europe is that you can't go out in the middle of the night and get a Slurpee.

The belief in a supernatural source of evil is not necessary; men alone are quite capable of every wickedness.

Would those of you in the cheaper seats clap your hands? And the rest of you, if you'll just rattle your jewelry.

Girls are always running through my mind. They don't dare walk.

One reason I don't drink is that I want to know when I am having a good time.

The great tragedy of Science - the slaying of a beautiful hypothesis by an ugly fact.

Historians are like deaf people who go on answering questions that no one has asked them.

I can think of nothing more boring for the American people than to have to sit in their living rooms for a whole half hour looking at my face on their television screens.

All animals are equal but some animals are more equal than others.

There's so much comedy on television. Does that cause comedy in the streets?

Coming home from very lonely places, all of us go a little mad: whether from great personal success, or just an all-night drive, we are the sole survivors of a world no one else has ever seen.

Correct me if I'm wrong, but hasn't the fine line between sanity and madness gotten finer?

If it's true that our species is alone in the universe, then I'd have to say that the universe aimed rather low and settled for very little.