Psychologists think they're experimental psychologists. Experimental psychologists think they're biologists. Biologists think they're biochemists. Biochemists think they're chemists. Chemists think they're physical chemists. Physical chemists think they're physicists. Physicists think they're theoretical physicists. Theoretical physicists think they're mathematicians. Mathematicians think they're metamathematicians. Metamathematicians think they're philosophers. Philosophers think they're gods.