《战国策·燕一·苏代谓燕昭王》
如果仅是自我完善就够了，那么臣下也就回到周地的家乡去种地了，何必还讨扰大王的朝庭呢？
若自忧而足，则臣亦之周负笼耳，何为烦大王之廷耶？
If self-perfection is enough, then your subjects would have returned to their homeland in Zhou and become farmers, why would they bother Your Majesty's court?