I think risk is important. I don't care if it's a great financial risk or a physical risk. You only get out of something what you put into it and the fact that you are willing to risk something means that you are going to get a lot more out of it.

I believe the accepted model of capitalism that demands endless growth deserves the blame for the destruction of nature, and it should be displaced. Failing that, I try to work with those companies and help them change the way they think about our resources.

It's not an adventure until something goes wrong.

Hire extremely independent, intelligent, and passionate people, not necessarily "experts." Maybe three or four of my employees have MBAs, and those guys aren't necessarily at the top of the food chain.

You can solo-climb Everest without using oxygen or you can pay guides and Sherpas to carry your loads, put ladders across crevasses, lay in 6,000 feet of fixed ropes, and have one Sherpa pulling you and another pushing you. ... The goal of climbing big, dangerous mountains should be to attain some sort of spiritual and personal growth, but this won't happen if you compromise away the entire process.

One thing I did not want to change, even if we got serious, work had to be enjoyable on a daily basis. We all had to come to work on the balls of our feet and go up the stairs two at a time.

Just why is Yosemite climbing so different ? Why does it have techniques, ethics and equipment all of its own ? The basic reason lies in the rock itself. Nowhere else in the world is the rock so exfoliated, so glacier-polished and so devoid of handholds. All of the climbing lines follow vertical crack systems. Every piton crack, every handhold is a vertical one. Special techniques and equipment have evolved through absolute necessity.