Very often, the reason that people reach faulty conclusions is not their inability to reason; it is that they reason from faulty premises. The refusal of ancient seamen to go far out to sea lest they fall off the world was not a function of faulty reasoning; it was, in fact, sound reasoning-based on the faulty premise that the earth was flat. So too, the many people who think that more parties, sex, movies, and clothes, classier cars, and a whole host of other fun providers will bring them happiness are not using faulty reasoning. The fault lies in their original premise-that more fun will bring happiness.