There is, however, a strong empirical reasonwhy we should cultivate thoughts that cannever be proved. It is that they are known tobe useful. Man positively needs general ideasand convictions that will give a meaning tohis life an d enable him to find a place forhimself in the universe. He can stand the mostincredible hardships when he is convinced thatthey make sense; he is crushed when, on topof all his misfortunes, he has to admit that heis taking part in a "tale told by an idiot.