My work is all about adventure and teamwork in some of the most inhospitable jungles, mountains and deserts on the planet. If you aren't able to look after yourself and each other, then people die.

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.

Adventure should be 80 percent 'I think this is manageable,' but it's good to have that last 20 percent where you're right outside your comfort zone. Still safe, but outside your comfort zone.

The only difference between 'try' and 'triumph' is varying degrees of 'umph'

You only get one chance at life and you have to grab it boldly.

Life doesn't reward the naturally clever or strong but those who can learn to fight and work hard and never quit.

Never depend on those luck moments – they are gifts – but instead always build your own back-up plan.