"It is not clear that intelligence has any long-term survival value."

"Science predicts that many different kinds of universe will be spontaneously created out of nothing. It is a matter of chance which we are in."

"The real danger is not that machines will think like us, but a mirror reflecting our own human biases, if we can align its goals with humanity."

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

"Doubt is a pain too lonely to know that faith is his twin brother."

"The only real progress lies in learning to be wrong all alone."

"It is eerie being all but alone in Westminster Abbey. Without the tourists, there are only the dead, many of them kings and queens. They speak powerfully and put my thoughts into vivid perspective."

"They that have lived a single day have lived an age."