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.

To really be on stage and not know what you're going to say, and to be able to say something that makes people laugh, or do something that's sort of abstract or off the beaten path and have people connect to it by just putting your ideas together, that really makes me happy.

The science of life is changing hearts and minds.

The best science frequently combines an awareness of broad and significant problems with focus on an apparently small issue or detail that someone very much wants to solve or understand. Sometimes these little problems or inconsistencies turn out to be the clues to big advances.

I am happy now, to recall that I was not only his son but his companion, and whenever there was a hunting expedition or any other pleasure, I was always with him.