Human life is far more important than just getting to the top of a mountain.

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.

Life's a bit like mountaineering - never look down.

I've always hated the danger part of climbing, and it's great to come down again because it's safe.

While on top of Everest, I looked across the valley towards the great peak Makalu and mentally worked out a route about how it could be climbed. It showed me that even though I was standing on top of the world, it wasn't the end of everything. I was still looking beyond to other interesting challenges.

I think the really good mountaineer is the man with the technical ability of the professional and with the enthusiasm and freshness of approach of the amateur.

[Derek] Shackleton was a man who - it's probably arrogant to say it - but he was a little bit like me. He undertook incredible dangers and carried on over the sea and over the ice and all the rest of it. He was a remarkable man.