Karl Popper once advised a student that if he wanted to reap intellectual fame, he should write endless pages of obscure, high-flown prose that would leave the reader puzzled and cowed. He should then here and there smuggle in a few sensible, straightforward sentences all could understand. The reader would feel that since he has grasped this part, he must have also grasped the rest. He would then congratulate himself and praise the author.