What does it mean to be brave after smelling it?

"Mean, correct mistakes, it's time to learn manners. It is almost brave to know your shame and have the courage to correct it. This is an appreciation of the behavior of those who know how to correct it. The Book of Rites written by Zi Si during the Warring States Period? The golden mean.

The courage of "knowing shame is almost brave" said by Confucianism is the courage to change. Being brave after knowing shame comes from "knowing shame is almost brave" and the language is "golden mean". In Confucianism, it, together with "learning to approach knowledge" and "doing to approach benevolence", constitutes the exposition of "three virtues" of knowledge, benevolence and courage. Therefore, this lower link line embodies the philosophical thought consistent with the upper link line and has a unique idea of fighting fortifications.