I think self-portraits are very difficult. I’ve always seen mine as straightforward, very stripped down, hair pulled back. No shirt. Whatever light happened to be available. I’d want it to be very graphic – about darkness and light. No one else should be there, but I’m scared to do it by myself. I’ve been thinking about it for a long time. The whole idea of a self-portrait is strange. I’m so strongly linked to how I see through the camera that to get to the other side of it would be difficult. It would be as if I were taking a photograph in the dark.

I was out there with the White House press squad, and after his helicopter took off, and the carpet rolled up...This wasn't a photograph that others were taking, but I continued to take pictures.

It's a heavy weight, the camera. Now we have modern and lightweight, small plastic cameras, but in the '70s they were heavy metal.

All dancers are, by and large, a photographer's dream. They communicate with their bodies and they are trained to be completely responsive to a collaborative situation.

Lennon was very helpful. What he taught me seems completely obvious: he expected people to treat each other well.

A photograph is just a tiny slice of a subject. A piece of them in a moment. It seems presumptuous to think you can get more than that.

People buy ideas, they don't buy photographs.