I meet so many people who are intimidated by arithmetic.

Everyone you will ever meet knows something you don't.

We are just a speck, on a speck, orbiting a speck, in the corner of a speck, in the middle of nowhere.

To leave the world better than you found it, sometimes you have to pick up other people's trash.

Science is the best idea humans have ever had. The more people who embrace that idea, the better.

You and I are made of stardust. We are the stuff of exploded stars. We are therefore, at least 1 way that the Universe knows itself. That, to me, is astonishing.

There's nothing I believe in more strongly than getting young people interested in science and engineering, for a better tomorrow, for all humankind.

I speak with dogs frequently. They don't really talk, but I feel they're communicating.

The natural world is a package deal; you don't get to select which facts you like and which you don't.

The more you find out about the world, the more opportunities there are to laugh at it.

Science is the best thing humans beings have ever come up with. And if it isn't, science will fix it.

Do you see how the sky holds the sun?In a powerful but effortless way that shows off her beauty and strength?That's how a King holds his Queen.

Just bring your wits. Sometimes that's the most effective weapon any of us has.

As long as you're moving, it's easier to steer.

He has never been known to use a word that might send a reader to the dictionary."(on Ernest Hemingway

Having a birthday cake squashed into your face by young kids? Delicious. I always don a Santa suit at Christmas. Remaining childish is a tremendous state of innocence.

The fall of the Berlin Wall makes for nice pictures. But it all started in the shipyards.

The government to you is what God is to agnostics--only to be invoked when your own well being is at stake.

Much of outcomes research is a systematic attempt to exploit what is known and make it better.

My gosh, if you’re going away, we got a million things to talk about! All the things we would’ve talked about next month, the month after! Praying mantises, zeppelins, acrobats, sword swallowers!

Be happy. It really annoys negative people.