Three quotes:

"To photograph is to hold one's breath, when all faculties converge to capture fleeting reality. It's at that precise moment that mastering an image becomes a great physical and intellectual joy."

Henri Cartier-Bresson

and

'World is crazier and more of it than we think, incorrigibly plural' (Louis Macneice)

and

'There is a vitality, a life force, an energy, a quickening that is translated through you into action, and because there is only one of you in all time, this expression is unique. And if you block it, it will never exist through any other medium and be lost. The world will not have it.' (Martha Graham)