It is better to be wrong than to be vague.

A model is such a fascinating toy that you fall in love with your creation.

The technologies that raise the fewest ethical problems are those that work on a human scale, brightening the lives of individual people.

And somehow mother nature manages to create this incredible biosphere, to create this incredibly rich environment of animals and plants with this amazingly small amount of data.

We cannot hope to either understand or to manage the carbon in the atmosphere unless we understand and manage the trees and the soil too.

All the time worrying about pushing the children and getting them to be mathematically literate and all that stuff. It's terribly hard on the kids. It's also hard on the teachers. And I think it's totally useless.

You could say science also is an art.