I think the important decision for a photographer is to choose a subject that intensely interests him or her.

I agree that all good photographs are documents, but I also know that all documents are certainly not good photographs. Furthermore, a good photographer does not merely document, he probes the subject, he 'uncovers' it.

The more you do, the more you realize there is to do, what a vast object the metropolis is, and how the work of photographing could go on forever.

I have yet to see a fine photograph which is not a good document.

Photography was the medium preeminently qualified to unite art with science. Photography was born in the years which ushered in the scientific age, an offspring of both science and art.

I think the important decision for a photographer is to choose a subject that intensely interests him or her.

I wanted to combine science and photography in a sensible, unemotional way. Some people’s ideas of scientific photography is just arty design, something pretty. That was not the idea. The idea was to interpret science sensibly, with good proportion, good balance and good lighting, so we could understand it.