...means to recognize – simultaneously and within a fraction of a second– both the fact itself and the rigorous organisation of visually perceived forms that give it meaning. It is putting one’s head, one’s eye, and one’s heart on the same axis.
...In order to “give a meaning” to the world, one has to feel involved in what one frames through the viewfinder. This attitude requires concentration, discipline of mind, sensitivity, and a sense of geometry. It is by economy of means that one arrives at simplicity of expression. "
- Henri Cartier-Bresson.