My relationship with the mountains actually started when I was 16. Every year, a group used to be taken from Auckland Grammar down to the Tangariro National Park for a skiing holiday.
I think I mainly climb mountains because I get a great deal of enjoyment out of it. I never attempt to analyze these things too thoroughly, but I think that all mountaineers do get a great deal of satisfaction out of overcoming some challenge which they think is very difficult for them, or which perhaps may be a little dangerous.
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.
On the summit of Everest, I had a feeling of great satisfaction to be first there.