Joan Didion
[Writer, b. 1934, Sacramento, California, lives in New York.]

 ...[t]o shift the structure of a sentence alters the meaning of that sentence, as definitely and inflexibly as the position of a camera alters the meaning of the object photographed. 

Gilles Deleuze
[Writer and philosopher, b. 1925, Paris, d. 1995, Paris.]

 External images act on me, transmit movement to me, and I return movement: how could images be in my consciousness since I am myself image, that is, movement? 

Michel de Certeau
[Writer, b. 1925, Chambéry, France, d. 1986, Paris.]

 Can the vast technology beneath our gaze be anything but a representation? Any optical artifact... The city panorama is a “theoretical” (ie visual) simulacrum: in short, a picture, of which the preconditions for feasibility are forgetfulness and a misunderstanding of processes. 

Louis-Jacques-Mandé Daguerre
[Artist and one of the originators of photography, b. 1787, Cormeilles-en-Parisis, Val-d'Oise, France, d. 1851, Bry-sur-Marne, France.]

 I have seized the light. I have arrested its flight. 

Bruce Davidson
[Photographer, b. 1933, Oak Park, Illinois, lives in New York.]

 I don’t always know why I’m photographing something. It’s my learning machine. 

Louise Georgina Daguerre (né Arrowsmith)
[Wife of Louis Jacques Mande Daguerre, b. 1810, d. 1857.]

 He is always at thought; he cannot sleep at night for it. I am afraid he is out of his mind; do you, as a man of science, think it can every be done, or is he mad? (1827, to chemist J.B. Dumas on her husband’s efforts to invent photography.) 

David Douglas Duncan
[Photojournalist, b. 1916, Kansas City, Missouri, lives in Mougins, France.]

 I never felt in competition with anybody in war photography. You’re lucky to get your ass in and out again. It’s as simple as that. It’s the easiest photography in the world to shoot somebody who’s been shot up. It doesn’t take a genius. That’s easy. The only thing you need to know is your photography. Get in and if you’re lucky get out. And get as close as you can get. 

Luc Delahaye
[Photographer, b. 1962, Tours, France, lives in Paris.]

 What you want to be is a poet…. To voice the real and at the same time create an image that is a world in itself, with its own coherence, its autonomy and sovereignty; an image that thinks.