It was wrong if there was a man suffering altitude problems and was huddled under a rock, just to lift your hat, say 'good morning' and pass on by, he said. Human life is far more important than just getting to the top of a mountain.

Ever since the morning of May 29, 1953, when Tenzing Norgay and I became the first climbers to step onto the summit of Mount Everest, I've been called a great adventurer.

I think the whole attitude towards climbing Mount Everest has become rather horrifying. The people just want to get to the top. They don't give a damn for anybody else who may be in distress and it doesn't impress me at all that they leave someone lying under a rock to die.

With practice and focus, you can extend yourself far more than you ever believed possible.

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 don't spend a lot of time thinking about dying, but I like to think that I've - if it did occur - that I would die peacefully and not make too much of a fuss about it.

There is precious little in civilization to appeal to a yeti.