There are lots and lots of challenges that I wished - at the time - that I had done.There are lots of occasions where there were exciting things to be done but for some reason or another it was physically impossible for us to do them. I still wouldn't mind if I was able to go down into this most impressive valley in the Antarctic, but of course those things are beyond me now.

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

As a youngster I was a great dreamer, reading many books of adventure and walking lonely miles with my head in the clouds.

[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.

Environmental problems are really social problems anyway. They begin with people as the cause and end with people as the victims

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.

If the going is tough and the pressure is on, If the reserves of strength have been drained and the summit is still not in sight, then the quality to seek in the person is neither great strength nor quickness of hand, but rather a resolute mind firmly set on its purpose that refuses to let its body slack or rest.