If I am seen as successful, it's all the more reason not to change - not to lose track of friends, not to be driven everywhere, not to go and get away from the world. That, to me, is real success: enjoying what you do, but being the same person.

I've been lucky to have made a number of travel programmes with the BBC, the object being to see places off the beaten track. As a result, I've often had a guide who's been able to show me things that you wouldn't see with a tour group.

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

My marriage has worked because I am not around much.

You can't get a suit of armour and a rubber chicken just like that. You have to plan ahead.

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.

Contrary to what the politicians and religious leaders would like us to believe, the world won't be made safer by creating barriers between people.