The thing that makes me most optimistic is China and India - both of them doing well.

The PhD system is the real root of the evil of academic snobbery. People who have PhDs consider themselves a priesthood, and inventors generally don't have PhDs.

The reason why new concepts in any branch of science are hard to grasp is always the same; contemporary scientists try to picture the new concept in terms of ideas which existed before.

I like people who are working on practical things and who are working in teams. It's not so important to get the glory. It's much more important to get something that works. It's a better way to live.

The world is just - it's wonderful when you look at all the detail. It's just amazing.

Do not imagine that you have to know everything before you can do anything. My own best work was done when I was most ignorant.

Unfortunately the global warming hysteria, as I see it, is driven by politics more than by science.