There is a creative fraction of a second when you are taking a picture. Your eye must see a composition or an expression that life itself offers you, and you must know with intuition when to click the camera. That is the moment the photographer is creative. Oop! The Moment! Once you miss it, it is gone forever.
Henri Cartier-BressonThink about the photo before and after, never during. The secret is to take your time. You mustn't go too fast. The subject must forget about you. Then, however, you must be very quick.
Henri Cartier-BressonPhotography appears to be an easy activity; in fact it is a varied and ambiguous process in which the only common denominator among its practitioners is in the instrument.
Henri Cartier-Bresson