A lot of what I am looking for is a moment of astonishment, he says. Those moments of pure consciousness when you involuntarily inhale and say 'Wow!'

I think about photographs as being full, or empty. You picture something in a frame and it's got lots of accounting going on in it-stones and buildings and trees and air - but that's not what fills up a frame. You fill up the frame with feelings, energy, discovery, and risk, and leave room enough for someone else to get in there.

When you're on the street, and, as you're walking along, a woman turns the corner going away from you, and for an instant you have a glimpse of the side of her face, of the gesture of her shoulder, the shape of her body, and you are committed... You are in love for an instant, or your senses are rocked for an instant. That person then disappears and is lost to you forever.

I want to enjoy the languor of just living, recognizing, acknowledging, taking it in, sort of amplifying it in some way. [Photography] is a great medium for that. It happens in an instant, but it gives you hours or days of time to reflect on things. It’s a beautiful system, this game of photography, to see in an instant and go back and think about later on. It’s pure philosophy. And poetry.

I have to say, taking photographs is such an instantaneous act. The recognition and the acting on the recognition, depending on your equipment, is close to instantaneous.

I photographed the entire thing in color because to photograph it in black and white would be to keep it as a tragedy. Because there is a tragic element to photographing, in this case not war, but the collapse. It was just destruction.

You fill up the frame with feelings, energy, discovery, and risk, and leave room enough for someone else to get in there.