Being brave isn't the absence of fear. Being brave is having that fear but finding a way through it.

Well, wolves will pretty rarely hunt. You're vulnerable if you're on your own or injured. But for lone wolves, get up high, show them that you're not injured, face 'em off, be authoritarian with it, and look 'em in the eye.

Are you the sort of person who can turn around when you have nothing left, and find that little bit extra inside you to keep going, or do you sag and wilt with exhaustion? It is a mental game, and it is hard to tell how people will react until they are squeezed.

I've never really had a TV career. I've been a soldier and a climber.

Americans are cool, if you show just a chink of vulnerability, they respond so much. They'll pat you on the arm and say, 'Hey kid, you're all right'. Brits will respond but they are much more cynical.

The rules of survival never change, whether you're in a desert or in an arena.

I come from a line of self-motivated, determined folk - not grand, not high society, but no-nonsense, family-minded go-getters.