A Photograph (n.) is a meeting place where the interests of the photographer, the photographed, the viewer and those who are using the photograph are often contradictory.
A Photograph's (n.) true content is invisible, for it derives from a play, not with form, but with time.
A Photograph (n.) is the result of the exercise of human choice in a given situation, namely the choice that it is worth recording that this event or object has been seen.
The Photograph (n.) is there to remind us of what we forget whereas the painting records what the painter remembers. Given that each one of us forgets different things, a photo, more than a painting is capable of changing its meaning according to who is looking at it.
The Photograph (n.) is there to remind us of what we forget while a painting is a record of what the painter remembers.