People look for patterns in everything. It's what keeps us sane, I suppose. I struggle to see any patterns in my life. I think I can understand depression a bit because of my sister. My own feelings of ... I'm aware that, if you feel down, it can be strangely unrelated to circumstances around you. That's just the way life is.

If atheists are deaf to the word of God, then theists are blind to the ways of man.

When in doubt, resort to animation.

There are many ways of seeing the world. You can hang upside down from a meteor, volunteer to be the fourth stage of a three-stage rocket, or simply get in a balloon and keep going. But if it's sheer, unadulterated discomfort you're looking for, just stay on land.

From my travels around the world I have seen how much damage and pollution is done by the careless disposal of waste. It is also evident that we in the West produce far more and throw away far more than the developing world, almost without thinking

I'm aware that, if you feel down, it can be strangely unrelated to circumstances around you. That's just the way life is.

I wanted to be an explorer, but gradually found the world had been explored and that there was nowhere left, really. Once they climbed Everest in 1953, when I was 10 years old, I thought, 'Well, that's pretty much it now.' But the idea of travelling and exploring and adventure was very strong.