《庄子·外篇·天道》
天与地是最为神圣而又玄妙的，尚且存在尊卑、先后的序列，何况是社会的治理呢！
夫天地至神，而有尊卑先后之序，而况人道乎！
Heaven and earth are the most sacred and mysterious, and there are still sequences of high and low, first and last, not to mention the governance of society!