For years, my early work with Roger Penrose seemed to be a disaster for science. It showed that the universe must have begun with a singularity, if Einstein's general theory of relativity is correct. That appeared to indicate that science could not predict how the universe would begin.

To my mathematical brain, the numbers alone make thinking about aliens perfectly rational.

People who boast about their I.Q. are losers.

I am damned if I'm going to die before I have unraveled more of the universe

No one can resist the idea of a crippled genius.

I don't fear God- I fear His believers.

I think those who have a terminal illness and are in great pain should have the right to choose to end their own life, and those that help them should be free from prosecution.