In almost every photograph I have ever made, there is something I would do to complete it. I take that to be the spirit hole or the deliberate mistake that's in a Navajo rug to not be godlike, but to be human.

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.

It matters little how much equipment we use; it matters much that we be masters of all we do use.

Above all, it's hard learning to live with vivid mental images of scenes I cared for and failed to photograph. It is the edgy existence within me of these unmade images that is the only assurance that the best photographs are yet to be made.

When I first went to 'National Geographic,' I thought I was the least qualified person to step through the doors. But because of my parents and the culture of continual learning they imposed on us, I later came to believe I was the most qualified person who ever worked there.

The reason I don't want to say anything about it is it has a strange power to take over the conversation. Just like it's doing with us. I was asked to participate in a documentary about Richard Prince, and be the voice of someone who was appropriated, and I declined. The reason I did is I don't want it to be the subject of the discussion of my work.

Yes, there are billions more photographers, and billions more photographs every day, but who's building up a point of view? Who's photographing with intention, and whose body of work will sustain itself and survive?