Words should only be used when we need to delve deeper into the heart of things

Words should say everything an image can't. Before having characters speak, we should examine everything they could express, with their eyes, above all with body language, certain kinds of interaction, certain ways of behaving. Words should only be used when we need to delve deeper into the heart of things. In short, ideas must be expressed on film using appropriate images and sounds, and dialogue should only be used as a last resort.

Robert Bresson