“Some subjects are so serious that one can only joke about them.”

If anybody says he can think about quantum physics without getting giddy, that only shows he has not understood the first thing about them.

If we couldn’t laugh at ourselves, that would be the end of everything.

An expert is a man who has made all the mistakes which can be made, in a narrow field.

Physics is the belief that a simple and consistent description of nature is possible.

Sometimes the child in one behaves a certain way and the rest of oneself follows behind, slowly shaking its head.

It is, indeed, perhaps the greatest prospect of humanistic studies to contribute through an increasing knowledge of the history of cultural development to that gradual removal of prejudices which is the common aim of all science.

We all know your idea is crazy. The question is whether it is crazy enough.

When it comes to atoms, language can be used only as in poetry. The poet, too, is not nearly so concerned with describing facts as with creating images and establishing mental connections.

Every great and deep difficulty bears in itself its own solution. It forces us to change our thinking in order to find it.

Everything we call real is made of things that cannot be regarded as real.

It is wrong to think that the task of physics is to find out how nature is. Physics concerns what we say about nature.

If you aren’t confused by quantum mechanics, you haven’t really understood it.

Every valuable human being must be a radical and a rebel, for what he must aim at is to make things better than they are.

And anyone who thinks they can talk about quantum theory without feeling dizzy hasn’t yet understood the first thing about it.

Truth is something that we can attempt to doubt, and then perhaps, after much exertion, discover that part of the doubt is not justified.

We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct. My own feeling is that it is not crazy enough.

Existentialists are monumentally and monotonously serious; they don’t like to joke.

I’m not freakishly short. I had, on my show, used shortness as a joke subject; it didn’t really bother me.

We don’t really have to make fun of religion – it makes fun of itself.

The brain process that results in a joke materializing where no joke was before remains a mystery. I’m not aware of any scholarly, scientific or neurological studies on the subject.

Well, I mean, if a joke or humor is bawdy, it’s got to be funny enough to warrant it. You can’t just have it bawdy or dirty just for the sake of being that – it’s got to be funny.

Your departure is no joke it freaks me out every time you leave for the airport.

Are disappointing patterns just patterns only? Or are they a mockery of your stupidity?

He who laughs last didn’t get the joke.