Mathematics is not only real, but it is the only reality.

In many cases a dull proof can be supplemented by a geometric analogue so simple and beautiful that the truth of a theorem is almost seen at a glance.

All mathematicians share... a sense of amazement over the infinite depth and the mysterious beauty and usefulness of mathematics.

The last level of metaphor in the Alice books is this: that life, viewed rationally and without illusion, appears to be a nonsense tale told by an idiot mathematician.

The sudden hunch, the creative leap of mind that "sees" in a flash how to solve a problem in a simple way, is something quite different from general intelligence.

A surprising proportion of mathematicians are accomplished musicians. Is it because music and mathematics share patterns that are beautiful?

As Bertrand Russell once wrote, two plus two is four even in the interior of the sun.

In no other branch of mathematics is it so easy for experts to blunder as in probability theory.

The universe is almost like a huge magic trick and scientists are trying to figure out how it does what it does.

A god whose creation is so imperfect that he must be continually adjusting it to make it work properly seems to me a god of relatively low order, hardly worthy of any worship.

Mathemagical mathematics combines the beauty of mathematical structure with the entertainment value of a trick.

Anything you can think of, anything you can imagine- is real.. somewhere. We dream of such things, here on earth, never realizing in our dream-state our minds are peering into other worlds.

It was time for me to spend more time with my wife. I'm not saying I do spend more time with my wife, because she would throw me out of the house, but we have breakfast together. I never did.

When you do movies it's you have a 3 month family and then everybody goes away and then joins another family, you know?

The function of art is to do more than tell it like it is-it’s to imagine what is possible.

Fatherhood is the most amazing thing that could ever have happened in my life.

As a species, we've somehow survived large and small ice ages, genetic bottlenecks, plagues, world wars and all manner of natural disasters, but I sometimes wonder if we'll survive our own ingenuity.

Love is the real nuclear bomb that destroys all our enemies, because when we love all living beings, we have no enemies.

One has to speak out and stand up for one's convictions. Inaction at a time of conflagration is inexcusable.

Think... of the world you carry within you.

The future of Yosemite climbing lies not in Yosemite, but in using the new techniques in the great granite ranges of the world.