what is electricity

what is electricity?Here is the answer:

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