Dad, said Rickey, what is electricity? Uh, replied his father, I dont really know too much about electricity. A few minutes later the boy said, How does gas make the engine go? Son, Im afraid I dont know much about motors. Dad, said the boy, what is anthropology? Anthropology? The father frowned. I really dont know. Gee, Dad, I guess Im making a nuisance of myself. Not at all, son. If you dont ask questions, youll never learn anything.