Opposites are not contradictory but complementary.

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.

Science tells us that love not only diminishes the experience of physical pain but can make us—and our beloveds—healthier.

There's no day when I don't think it would be great to be 25 years old and have the Olympics coming in less than 300 days - and be the best in the world. I can't think of anything so motivating.

What anger worse or slower to abate then lovers love when it turns to hate.

Love was more than blind. It was deaf and dumb, too. It was catatonic. It was vegetative.

Every economic opinion is associated with a set of assumptions.

If you miss the moment, you miss your life.

In the future, women, rather than men, will be the ones to change the world.

America is a great country, and we've done a lot of good in the world. But we are a collection of people, not saints. We have our own sins to atone for.

The first author I remember being obsessed by, actually realizing 'I like the way he writes and I like the way he tells stories,' was C.S. Lewis and the 'Narnia' books.

Jiu Jitsu is about waiting for the right time to do the right move.