"A continuous awareness of light, from the aesthetic as well as the technical point of view, is vital in photography. When you go into a room, judge how the light is falling, estimate the light reading (confirm this with your exposure meter later) and assess the probable photographic tones and shapes ’ of whatever you look at. You should continually try to heighten your awareness of what is going on around you, and of your own reactions and feelings towards people, things and events. The camera should be an ever-present part of your life available to be used at any time and anywhere. ” ― Paul Hill, (‘Chapter One: Seeing and Thinking Photographically’, Approaching Photography, 2nd Edition, 2004, Photographers' Institute Press, ISBN 1 86108 323 8, p34)

— Approaching Photography by Paul Hill (Page 34)