That's the beautiful thing about science - that it's all about things we don't understand, not just the things we do understand.

The public knows that human beings are fallible. Only people blinded by ideology fall into the trap of believing in their own infallibility.

I think the biggest misconception is that everybody has to learn mathematics. That seems to be a complete mistake.

I grew up in England at a time when England was winning Nobel Prizes right and left. I mean it was amazing how many Nobel Prizes England was winning in chemistry and physics and biology and all the sciences and at that time the teaching of science in the schools was really lousy.

It's better to get mugged than to live a life of fear.

If we want to go to space with humans, that's for fun not for science. Human adventures in space are just sporting events.

For any speculation which does not at first glance look crazy, there is no hope.