《三略·中略》
三王用道德治理民众，使民众心悦诚服。三王制定法规，以防衰败，天下诸侯按时朝觐，天子的法度实行不废。
王者，制人以道，降心服志，设矩备衰，四海会同，王职不废。
The Three Kings governed the people with virtue, and this way made the people submit in a spirit of willing obedience. The Three Kings set out laws to prevent moral decay, hence all the feudal lords paid court to the emperor on time, and the emperor's laws never fell into disuse.