Stumble but Continue Walking

Suppose that a half dozen of us are seated around the walls of a very dark room. We are told that somewhere in the open middle space is a chair. Who would find it? Not those of us who sat still and philosophized about where chairs are placed in rooms. The person who would locate it is the one who'd get up, then walk and stumble around until he discovered it. Nobody ever found anything while sitting down. So don't be afraid to stumble! --Samuel Johnson