We must develop as quickly as possible technologies that make possible a direct connection between brain and computer, so that artificial brains contribute to human intelligence rather than opposing it.

My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.

I think the discovery of supersymmetric partners for the known particles would revolutionize our understanding of the universe.

Why are we here? Where do we come from? Traditionally, these are questions for philosophy, but philosophy is dead.

I think for a long time we were just 10 percent women in physics, and so obviously people can see things in the way they’ve always been seen."

You won't see me writing about particle physics, or even planetary geology, or chemistry. I practically failed chemistry, and if I had to write a book in any of those areas, I don't think it would go well.

One thing that you can't fake is chemistry.

If there were a clear prospect that such evils were part of a barbarian past, then at least we might find a small crumb of comfort. No such prospect exists: no scientific analysis can even remotely answer or account for past and present horrors of human behaviour.