There is a real danger that computers will develop intelligence and take over.

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

I don't have much positive to say about motor neuron disease, but it taught me not to pity myself because others were worse off, and to get on with what I still could do. I'm happier now than before I developed the condition.

Over a very small number of rolls of the dice, the uncertainty principle is very important.

Some people would claim that things like love, joy and beauty belong to a different category from science and can't be described in scientific terms, but I think they can now be explained by the theory of evolution.

Issuing an insurance policy against abduction by aliens seems a pretty safe bet.

I want to know why the universe exists, why there is something greater than nothing.