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

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.

I tell you: one must still have chaos in one, to give birth to a dancing star. I tell you: you have still chaos in you.

I am an engineer and hoping not just to change the world but also to touch human hearts.

There is an extraordinary collaborative spirit when you are learning and growing.

We say that a sentence is factually significant to any given person, if, and only if, he knows how to verify the proposition which it purports to express.

If you do things well, do them better. Be daring, be first, be different, be just.

The most terrifying things in the universe came from human minds.

Behind our unremarkable front door waits the little world of our making - our home.

The only thing about sanctions is that, like a lot of drone strikes, there are countless unintended victims. Cutting off aid to Uganda only increases the pain there.

It's not charming to go on a show and say, I dunno. It doesn't fool anybody. There's nothing glamorous about it at all.

A picture is worth a thousand texts.