We need them. We need scientifically literate voters and taxpayers for the future.

Television isn't inherently good or bad. You go to a bookstore, there are how many thousands of books, but how many of those do you want? Five? Television's the same way. If you're going to show people stuff, television is the way to go. Words and pictures show things.

The Big Bang banged, and for some reason we’re here. And that’s astonishing. And that we can understand that, that’s the most astonishing.

Humor is everywhere in that there's irony in just about anything a human does.

I always say when you see that old black-and-white footage of the rocket on the launch pad and it falls over and explodes, that's because people had slide rules. Not having the decimal point is a real drawback. You want the decimal point, take it from me.

There are just two people entitled to refer to themselves as "we"; one is the editor and the other is the fellow with a tapeworm.

The world's going to change climatically. We just want to control the change. We want to have a high quality of life for billions of people as we pass through this era.