We're a part of nature. As we destroy nature, we destroy ourselves. It's a selfish thing to want to protect nature.

The more you know, the less you need.

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.

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.

We took special pride in the fact that climbing rocks and icefalls had no economic value in society...We were like a wild species living in the edges of an ecosystem - adaptable, resilient and tough.

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.

Once you educate yourself, you're left with choices.