Once a discovery has been published, there is no way of un-publishing it.

I personally don't think of myself as either an optimist or a pessimist.

Nanotechnology has been moving a little faster than I expected, virtual reality a little slower.

There are some problems that technology can't solve.

I don't think I've ever really been a science fiction writer. I'm closer to a fantasist, speculative fiction, whatever, but labels are ultimately derogatory, and I eschew them as best I can.

I was born in California, raised a vegetarian, and love science fiction, so don't tell me how I need to be in order to fit your standards.

Would physics at Geneva be as good as physics at Harvard? I think not. Rome? I think not. In Britain, I don't think there is one place, neither Cambridge nor Oxford, which can compare with Harvard.

All the mathematical sciences are founded on relations between physical laws and laws of numbers, so that the aim of exact science is to reduce the problems of nature to the determination of quantities by operations with numbers.