I've fallen down crevasses, been bitten by snakes, been knocked unconscious, had various limbs broken and once, a heavy camera came plunging down which very nearly decapitated me.

I never wanted to do TV. I just did what I was trained to do through the Special Forces, and I've been doing that from a very young age.

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

If you risk nothing you gain nothing

Is your ego small enough, and your backbone strong enough, to raise others up high on your shoulders?

Sometimes an ember is all we need.

I've seen extreme bravery from the least likely of people. Life is about the moments when it's all gone wrong. That's when we define ourselves.

You don't need to go to the ends of the earth, you don't need to climb Everest to have a great adventure, it's invariably on our doorstep.

A wise man knows; learn from others, never get complacent and know where the classic old dangers come from.

Live a wild, generous full, exciting life – blessing those around you and seeing the good in all.

There is no feeling like coming home after danger.

If you are a good leader, you are a good listener.

The silence inside of you is the sound of your knowledge collapsing. Remember, it is you who said, 'I want to be free.'

Well... ...That's what you always forget, isn't it? I mean, you forget to pay attention to what's happening. And that's the same as not being here and now.

And New Year's Eve is very, very important to me.

As I have got older, I have become easier on myself. It's about realising things can't be perfect.

I know these days it sounds a little odd, but American governments are very fearful of European reaction. They were afraid we would be considered gunslingers.

Next time y'all need to find me, just rub these two wires for the doorbell.

A state too expensive in itself, or by virtue of its dependencies, ultimately falls into decay.

It is tribute to how far we have come in theoretical physics that it now takes enormous machines and a great deal of money to perform experiments whose results we can not predict.