therefore, it is said: Li's courtesy is beyond the top, and his reward is beyond the bottom. There is no way to persuade you to be indecent, and there is no shame in indecent assault. It's not easy for me to say that it's only since the ancient world was famous. -from, Gong Zizhen's

On Ming and Liang means

that the monarch in the world encourages his ministers with courtesy, and the ministers in the next place will repay the monarch with loyalty. The monarch can't make his ministers loyal to the festival without ceremony, and without ceremony and festival between the monarch and the minister, he can't preserve his shame. Even people who were famous for their virtue and political integrity in ancient times will come out again, and they will not disagree with my opinion.

(I'm not sure if it's right)