One could imagine such technology outsmarting financial markets, out-inventing human researchers, out-manipulating human leaders, and developing weapons we cannot even understand.

If I have questions about the universe on my mind when I go to bed, I can't turn off. I dream equations all night.

It was recently discovered that research causes cancer in rats.

Our only chance of long-term survival is not to remain lurking on planet Earth, but to spread out into space.

Someone told me that each equation I included in my book would halve the sales. I did put in one equation, Einstein's famous equation, E = MC squared. I hope that this will not scare off half of my potential readers.

I would like nuclear fusion to become a practical power source. It would provide an inexhaustible supply of energy, without pollution or global warming.

It would be very difficult to explain why the universe should have begun in just this way, except as the act of a God who intended to create beings like us.