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.

Adventuring can be for the ordinary person with ordinary qualities, such as I regard myself.

I was incredibly stubborn. I mean, I believe that my father was frequently in the right, but I would never admit it, and so we did have a few set-tos on various topics; but on the whole as I got older and my father got more mature we got along reasonably well.

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.

June [Hillary] had been doing all these things - the Himalayas and all the rest of it - so we had done things together for a long time, and, particularly as far as our Sherpas were concerned, we had a very sound, I think, philosophy. So that made it very easy for us to agree on what should be done.

Strong motivation is the most important factor in getting you to the top

Waihi Beach. It's a lovely beach, and we're right on the shore and I get a lot of pleasure out of waking up in the morning and hearing the waves roll in.