Still yelling, the khaki babies were loaded on to their dumb-waiters and wheeled out, leaving behind them the smell of sour milk and a most welcome silence. One of the students held up his hand; and though he could see quite well why you couldn't have lower-cast people wasting the Community's time over books, and that there was always the risk of their reading something which might undesirably decondition one of their reflexes, yet... well, he couldn't understand about the flowers. Why go to the trouble of making it psychologically impossible for Deltas to like flowers?