《淮南子·原道训》
因此圣人一贯遵循法度，不轻易改变适宜的常规，遵循法度准则，尽力依顺事物的本性。
是故圣人一度循轨，不变其宜，不易其常，放准循绳，曲因其当。
Therefore, a sage consistently follows rules, never changes suitable norms, complies with rules and standards, and exerts the utmost in following the nature of things.