I'm a great believer in the Arsene Wenger school of management - which is, you don't worry about the opposition, you just get your own act together.

Everything about my politics has been about the future.

What's now urgently needed [to stop environmental disaster] is the international political commitment to take action to avoid dangerous climate change.

I don't think I've ever been accused of being faddish. I'm more Marks & Spencer than Ted Baker.

You know, you only get to live life once, so there are two things that that yields. One is that there's no point in crying over spilt milk, but secondly you hate wasting time, energy, and whatever talent you've got...

The science is getting worse faster than the politics is getting better.

I think the wonderment of seeing my two sons developing makes me incredibly optimistic about human potential. It makes you think: 'My goodness. It's a miracle that's going on here. What could the human race do together?'