I'm luckier than my grandfather, who didn't move more than five miles from the village in which he was born.

The World is full of wonders, but they become more Wonderful, not less Wonderful when Science looks at them.

I'm absolutely strict about it. When I land, I put my watch right, and I don't care what I feel like, I will go to bed at half past eleven. If that means going to bed early or late, that's what I live by. As soon as you get there, live by that time.

Fundamentally not to waste energy. If we were all to reduce our demands for energy, it would make an enormous amount of difference.

Nature isn't positive in that way. It doesn't aim itself at you. It's not being unkind to you.

It is that range of biodiversity that we must care for - the whole thing - rather than just one or two stars.

We really need to kick the carbon habit and stop making our energy from burning things. Climate change is also really important. You can wreck one rainforest then move, drain one area of resources and move onto another, but climate change is global.