Some things go better than you expected, other things go worse, so I'm... I think the only sensible thing is just to wait and see and what I'm doing when I'm writing books - I'm not doing science so much anymore.

Climate change is part of the normal order of things, and we know it was happening before humans came.

For me too, the periodic table was a passion. ... As a boy, I stood in front of the display for hours, thinking how wonderful it was that each of those metal foils and jars of gas had its own distinct personality.

Of course, long-distance running has to do with the fact that we're hunters.

That's what I learned from World War II. Things are always more complicated than most people believe.

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

Mind and intelligence are woven into the fabric of our universe in a way that altogether surpasses our understanding.