make shoes for crossing bridges. Math teachers educate future engineers … You see? The stones are there for the lantern; the lantern is there for the stones. It is the little black box, only with many more gears. But we do not notice this enormous absence. Our headphones keep us so filled with artificial noise that we do not hear the deafening silence at the heart of it all. Our heads are filled, but our hearts are empty. If we dared to listen to “the sounds of silence”, like the existentialists,