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

The opposite of a fact is falsehood, but the opposite of one profound truth may very well be another profound truth.

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.

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

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.

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.

Love made me crazy. If it doesn’t you ain’t doin it right.

I don’t want to be viewed as a womaniser or whatever. I don’t like going crazy crazy, I like having fun but it’s nice to wake up in your own bed, isn’t it?

A question that sometimes drives me hazy: am I or are the others crazy?

Silence speaks so much louder than screaming tantrums. Never give anyone an excuse to say that you’re crazy.

I’m crazy, I’m nuts. Just the way my brain works. I’m not normal. I think differently.

People think you’re crazy if you talk about things they don’t understand.

If you’re not doing some things that are crazy, then you’re doing the wrong things.

Crazy how you gotta wait until it’s dark out to see who really with you.