I can't speak for other photographers, but the photographers who went forward strongly when the so-called "official" part of their career ended, to me, were those who had taught. Teaching enriches and enlivens one's work.

A mad, keen photographer needs to get out into the world and work and make mistakes.

It's more difficult now, to be a Geographic photographer, than it was when I came along. And it wasn't easy at that time.

My first priority when taking pictures is to achieve clarity. A good documentary photograph transmits the information of the situation with the utmost fidelity; achieving it means understanding the nuances of lighting and composition, and also remembering to keep the lenses clean and the cameras steady.

In my first class at the University of Kentucky, my American Literature professor came in, and the first sentence out of his mouth was "The central theme of American Literature is an attempt to reconcile what we've done to the New World." wrote that down in my notebook, and thought, "What is he talking about?" But that's what I think about now. The New World and what we've done to it.

I did it once, and National Geographic recruited me. I did it primarily out of curiosity. A lot of legendary photographers had worked on that campaign. Ernst Haas had done the early photography, and I knew him. There's a lore in photography about that campaign, and I was curious.

Aboriginal Australia is a tough place to work, rough and tough.