Today's photographers think differently. Many can't see real light anymore. They think only in terms of strobe - sure, it all looks beautiful but it's not really seeing. If you have the eyes to see it, the nuances of light are already there on the subject's face. If your thinking is confined to strobe light sources, your palette becomes very mean - which is the reason I photograph only in available light.

Another picture I hope to be remembered by is this one of the drum major rehearsing at the University of Michigan. It was early in this morning, and I saw a little boy running after him, all the faculty children in the playing field ran after the boy, and I ran after them. This is a completely spontaneous, unstaged picture.

I always prefer photographing in available light – or Rembrandt-light I like to call it – so you get the natural modulations of the face. It makes a more alive, real, and flattering portrait.

With photography, everything is in the eye and these days I feel young photographers are missing the point a bit. People always ask about cameras but it doesn't matter what camera you have. You can have the most modern camera in the world but if you don't have an eye, the camera is worthless. Young people know more about modern cameras and lighting than I do. When I started out in photography I didn't own an exposure meter - I couldn't , they didn't exist! I had to guess.

People will never understand the patience a photographer requires to make a great photograph, all they see is the end result. I can stand in front of a leaf with a dew drop, or a rain drop, and stay there for ages just waiting for the right moment. Sure, people think I'm crazy, but who cares? I see more than they do!

Photographers don't need to be aggressive. Some are. Henry Benson is aggressive - but then he's from Fleet Street. If you can talk to people, you don't need to push people around.

Retire? Retire from What? Life? I will only retire when I am dead!