When I'm filming, survival requires movement. You need your energy, and you've got to eat the bad stuff, and survival food is rarely pretty, but you kind of do it. I get in that zone, and I eat the nasty stuff, but I'm not like that when I'm back home.

Weather can kill you so fast. The first priority of survival is getting protection from the extreme weather.

I loved climbing because of the freedom, and having time and space. I remember coming off Everest for the last time, thinking of Dad and wishing that he could have seen what I saw. He would have loved it.

Sometimes an ember is all we need.

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.

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.

Once a job it has begun, do not stop until it's done. Whether it is big or small, do it well or not all.