《淮南子·主术训》
先王之所以能顺应天时，处事周全，富国利民，使国库民囤财物充盈，让远方异族归顺，是因为他的道性完备的缘故。
先王之所以应时修备，富国利民，实旷来远者，其道备矣。
The reason why the former kings were able to follow the course of nature, take care of all their affairs, enrich the country and benefit the people, fill the treasury and the people's granaries, and make foreigners submit was because their moral character was perfect.