To me, the perfect film is as though it were unwinding behind your eyes, and your eyes were projecting it themselves, so that you were seeing what you wished to see. Film is like thought. It’s the closest to thought process of any art.
Take a look at that lamp across the room. Now look back at me. Look back at that lamp. Now look back at me again. Do you see what you did? You blinked. Those are cuts. After the first look, you know that there’s no reason to pan continuously from me to the lamp because you know what’s in between. Your mind cut the scene. First you behold the lamp. Cut. Then you behold me.
quoted by Walter Murch in In The Blink of An Eye: A perspective on film editing