When you're climbing at high altitudes, life can get pretty miserable.

Boredom has always been a problem.

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

I think global warming is a very real problem for our world. I've seen the changes that have taken place in the Antarctic, in the Himalayas, where the natural ice has sort of faded away, and there's no doubt in my mind that we're living in a strange world, a world which is not easy to understand or handle, But there's nothing you can do about, you just have to live your life as best you can.

Challenge is what makes men. It will be the end when men stop looking for new challenges.

I'm a very, very modest person and with limited abilities. I do have the wish to succeed in anything I undertake, and that does help out, but, in general, there are so many other people who are skilled in their field that I feel very ordinary.

I will come again & conquer you because as a mountain you can't grow, but as a human, I can