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 it all comes down to motivation. If you really want to do something, you will work hard for it.

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.

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 have the challenges sort of already there and as a consequence my companions feel a considerable desire to do this, too, and they feel very put out if they are left in the cold, so there we have it. We have me who has lots of ideas and then we have a very good team who wish - who are persuaded almost - to take part in these challenges.

No one remembers who climbed Mount Everest the second time.