Just after World War II, this country led the world in science by every way you could measure it, yet the number of scientists was a tiny proportion of what it is now.

This programme to stop nuclear by 2020 is just crazy. If there were a nuclear war, and humanity were wiped out, the Earth would breathe a sigh of relief.

I have a feeling that climate change may be an issue as severe as a war. It may be necessary to put democracy on hold for a while.

You mustn't take what I say as gospel because no one can second-guess the future.

Only nuclear power can now halt global warming.

Humans are too stupid to prevent climate change from radically impacting on our lives over the coming decades.

I'm a scientist, not a theologian. I don't know if there is a God or not. Religion requires certainty.