《汉书·纪·成帝纪》
诏书又说： 古代圣王规定礼制以序尊卑，标志车服以表彰有德。虽有钱财，而无其尊，不得逾越礼制。所以人民注重自己的德行，重义而轻利。
又曰： 圣王明礼制以序尊卑，异车服以章有德，虽有其财，而无其尊，不得逾制，故民兴行，上义而下利。
The imperial edict also said: Ancient sage king established the ritual system to order the hierarchy, marked the dress and carriage to show the good deeds. Although with money, without the dignity, cannot exceed the ritual system. So people pay attention to their own virtues, pay more attention to the right and less attention to the benefit.