The man who wants to shoot a cloud down with an arrow will
exhaust all his arrows in vain. Many sculptors are such strange
hunters.
What you have to do is fiddle something on a drum or drum
something on a fiddle. Before long the cloud will descend, roll
about on the ground in happiness, and at last complacently turn
to stone.
Thus with a wave of the hands the sculptor will realize the
finest of statues.