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

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.

I'm actual thankful for the amount of responsibility that has been handed to me. I feel very honored.

I saw what I could [in Mexico City], but we rarely got anything other than big, mainstream American films.

There are now about as many different varieties of letters as there are different kinds of fools.

There was a writer in the '20s called Christopher Morley, who I remember a little bit of, who had some influence on me, but I couldn't tell you what it was.

In Hollywood, she's revered, she gets nominated for Oscars, but I've never heard anyone in the public or among my friends say, 'Oh, I love Winona Ryder.'

I just thought it was important that people knew right from the jump that I've got problems. But in all seriousness, that's a huge part of my writing process.

My father always says that heroism is in the Pashtun DNA.

It's important to feel good.

FACT: You CAN make money doing what you love! Even in a down economy!

I have never said that people “should” engage in armed attacks on the United States, but that such attacks are a natural and unavoidable consequence of unlawful U.S. policy.