To me, photography is the simultaneous recognition, in a fraction of a second, of the significance of an event as well as of a precise organization of forms which give that event its proper expression.
Henri Cartier-Bresson - The Decisive Moment (1952)
What if the photographer miss the moment? Would the photos have the same significance and the same expression?
A series of very famous "missed" photos.
Joe Rosenthal - Raising the Flag on Iwo Jima (1945)