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.

The thing about a theory in science is it allows you make predictions. Evolutionary theory allows us to predict what apples will taste good next harvest.

The strange thing about grinding that might surprise many people is that you can grind things and shape them using materials that are generally somewhat softer than the thing you're grinding and shaping.

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.

Talk about science with everyone you meet. Especially talk about climate change. It needs to become a part of our everyday conversation (the way it is everywhere else in the world).

My father was a very good Boy Scout. He was very skilled with knots, and he showed me how to tie a bow tie.

If the Earth gets hit by an asteroid, it's game over. It's control-alt-delete for civilization.