I am acutely aware of the fact that the marriage between mathematics and physics, which was so enormously fruitful in past centuries, has recently ended in divorce.

Mind and intelligence are woven into the fabric of our universe in a way that altogether surpasses our understanding.

Some things go better than you expected, other things go worse, so I'm... I think the only sensible thing is just to wait and see and what I'm doing when I'm writing books - I'm not doing science so much anymore.

It's amazing how much progress there's been in China, and also India. Those are the places that really matter - they're half of the world's population. They're the places where things are enormously better now than they were 50 years ago. And I don't see anything that's going to stop that.

Almost everything about the universe is astounding.

The key to having an interesting life is to always say "yes" to anything crazy.

If you start out with a tragic view of life, then anything since is just a bonus.