SADNESS An old scholar sits in the middle of a crowd and tells a joke. Everybody bursts out laughing. A moment later, he retells still that joke. This time, there are only a few people who burst out laughing. ... He tells again and again that joke. Till there's no one among the crowd who laughs anymore, he smiles and says: "A joke can't make us laugh many times, why are we sad forever for one matter?". Tram