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.

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

I'm past carrying out some of the wishes that I would have wanted to do before, but I still dream about what I would like to do if I was able to do so.

I still think have this deep desire for our Himalayan Trust - that we raise the necessary funds, that we do all the things that the Sherpas want us to do, and I would like to see us working together with them on these projects. Even though I'm old and decrepit I still have this strong feeling that I would like to carry these things out if it were still possible.

I think global warming is a very real problem for our world. I've seen the changes that have taken place in the Antarctic, in the Himalayas, where the natural ice has sort of faded away, and there's no doubt in my mind that we're living in a strange world, a world which is not easy to understand or handle, But there's nothing you can do about, you just have to live your life as best you can.

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

I always refused to give in if there was some argument with my father. Whether it was true or not, I refused to admit it and so often I would - well, tell lies, perhaps. I would either do that or change the story. Particularly if I felt that my father was being unjust, then I was very strongly motivated to not accept his ruling.