Of course I don't believe in it [pointing to horseshoe on his office wall]. But I understand that it brings you luck whether you believe in it or not.

A physicist is just an atom's way of looking at itself.

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

If quantum mechanics hasn't profoundly shocked you, you haven't understood it yet.

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

When we measure something we are forcing an undetermined, undefined world to assume an experimental value. We are not measuring the world, we are creating it.

I go into the Upanishads to ask questions.

There are some things so serious you have to laugh at them.

The best weapon of a dictatorship is secrecy, but the best weapon of a democracy should be the weapon of openness.

Nothing exists until it is measured.

No, no, you're not thinking; you're just being logical.

Children have but little charity for each other's defects.

It is at the edge of excellence that genius awaits.

I believe it is time for new leadership that is able to leave the '70s behind.

If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it.

Freedom and constraint are two aspects of the same necessity, which is to be what one is and no other.

The ultimate creative thinking technique is to think like God. If you're an atheist, pretend how God would do it.

Perhaps, a sin that humbles you is better than a good deed that makes you arrogant.

Never underestimate the ruthlessness of the ego to keep you in a state of suffering in which you voluntarily participate.

Music tells no truths.