有这样一则笑话:一个乞丐讨饭,某日,他敲开一户人家后问房主:“你家有蛋糕吗?”房主答:“没有蛋糕,给你米饭吧!”谁知乞丐说:“平时可以,但今天不行。因为今天是我的生日,我必须吃蛋糕。”乞丐居然拒绝别人的施舍,这以常人的眼光看,似乎有些不合常理。但如果从乞丐的角度去看,似乎又合情合理:过生日想吃蛋 There is such a joke: a beggar to beg for a meal, one day, he knocked on a family after asking the landlord: “your family has a cake? ” The landlord a: “no cake, give you rice!” Who knows the beggar said: “Usually can, but today can not .Because today is my birthday, I have to eat cake.” "Beggars actually refused to charity others, this ordinary people’s point of view, it seems a bit out of mind. However, if from a beggar’s point of view, it seems reasonable: birthday want to eat eggs