Tim Cahill

I have no problem with the adventure travel movement. It makes better, more sensitive people. If you get people diving on a coral reef, they're going to become more respectful of the outdoors and more concerned with the threats that places like that face and they're going to care more about protecting them than they would have before.

A lot of the physical flirtation with fear I did early on in my career, when I was a much younger person - stuff I wouldn't do now. But I was very interested in the mechanics of risk and fear in those days. And I found out fear pretty much always feels the same, whether it's doing a rock climb or speaking in front of an audience.

Many of the things that I have written on have focused, at least a big part of the story, on adolescents. I think that in that period of life, so much happens, and it's the period of life where you're forming into an adult. In certain ways, you're already an adult and in certain ways you're still a kid.