I have to admit I do get a bit depressed at times and you know I think about the good old days when I was charging ahead.

I get older I get more cantankerous, but June [Hillary] gets a bit more cantankerous, too.

I am a lucky man. I have had a dream and it has come true, and that is not a thing that happens often to men.

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.

Despite all I have seen and experiences, I still get the same thrill out of glimpsing a tiny patch of snow in a high mountain gully and feel the same urge to climb toward it.

In those days we were punished very frequently and I felt that it was often unjust, and so I would resist the desire to agree with many, many things. So I used to get beaten quite frequently and I more or less accepted it as part of life.

Motivation is the single most important factor in any sort of success.