A hundredth of a second here, a hundredth of a second there--even if you put them end to end, they still only add up to one, two, perhaps three seconds, snatched from eternity.

-Robert Doisneau

All photographs are there to remind us of what we forget. In this - as in other ways - they are the opposite of paintings. Paintings record what the painter remembers. Because each one of us forgets different things, a photo more than a painting may change its meaning according to who is looking at it.

-John Berger