To know ahead of time what you're looking for means you're then only photographing your own preconceptions, which is very limiting, and often false.
While there is perhaps a province in which the photograph can tell us nothing more than what we see with our own eyes, there is another in which it proves to us how little our eyes permit us to see.
I believe in living with the camera, and not using the camera.
Seeing is more than a physiological phenomenon... We see not only with our eyes but with all that we are and all that our culture is. The artist is a professional see-er.
The people who are garrulous and wear their heart on their sleeve and tell you everything, that's one kind of person, but the fellow who's hiding behind a tree and hoping you don't see him is the fellow that you'd better find out why.