You look at it [a photograph] ...

You look at it [a photograph] and all around the real world is humming, buzzing and moving, and yet in this little frame there is stillness that looks like the world. That connection, that collision, that interfacing, is one of the most astonishing things we can experience.
 Joel Meyerowitz

Quotes from the same author

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.
 Joel Meyerowitz
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.
 Joel Meyerowitz