Anyone who can contemplate quantum mechanics without getting dizzy hasn't understood it.

Predictions are hard, especially abot the future.

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.

I go into the Upanishads to ask questions.

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

You can recognize a small truth because its opposite is a falsehood. The opposite of a great truth is another truth.

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