《韩非子·外储说右下》
方吾说： 我听说古礼上讲：出外不和穿同样服装的人坐同一辆车，居家不和同一家族的人聚居在一起，何况做君主的把权势外借呢？ 
方吾子曰： 吾闻之古礼：行不与同服者同车，不与同族者共家，而况君人者乃借其权而外其势乎！ 
Fang Wu said: I heard that the ancient etiquette says: when going out, one should not ride in the same carriage with someone wearing the same clothes, and when at home, one should not live together with someone from the same family, let alone a sovereign lending their power to others?