《战国策·赵二·武灵王平昼闲居》
因此，圣贤的君主只制定有利于百姓的政策，但并不统一他们的器物用度；如果可以方便行事，礼制完全可以不相同。
是故圣人苟可以利其民，不一其用；果可以便其事，不同其礼。
For this reason the sage-kings laid down laws that were best for their people but did not standardise their utensils and implements; provided that they facilitated action, rites might well differ.