I always, I would say, make sure that in my presentation I'll have what I want to do. I try and make it so interesting to my companions that they want to go, too. I don't have to twist any arms or make - you know - any great challenges available.

People do not decide to become extraordinary. They decide to accomplish extraordinary things.

I had never experienced anything like it before and I don't think I have experienced anything like it since [on Ruapehu]. It was my dreams coming true in a way, and from there on I tended to become more of a doer than a dreamer.

Once I've decided to do something, I do usually try to carry it through to fruition.

We shared a philosophy together [with June Hillary]. We believed very strongly in the welfare of helping other people, particularly the Third World people.

Good planning is important. I've also regarded a sense of humor as one of the most important things on a big expedition. When you're in a difficult or dangerous situation, or when you're depressed about the chances of success, someone who can make you laugh eases the tension.

I think my strengths perhaps are that I'm determined. I may not be the best climber in the world, but I do like to sort of succeed and so that tends to drive me on, as it were, and I don't give up too easily.