The Ming Dynasty medical master Zhang Jingyue's "Lei Jing" discusses the treatment categories: 19. Four errors: Because there are many mistakes in action, it is only then that he blames himself for his incompetence and blames it on the incomplete inheritance of the teacher. Is this right? Is that so? ! As the saying goes: Only when you learn to know where you are shy will you know that you are not good at art. There are many people today who never know shame all their lives. How can they be like this? Bao Yin Bao.