Xu Tian said that Lin's father and son couldn't joke at once, because the Chinese medicine circle has its own rules and can't fool around. In particular, the relationship between teachers and apprentices must not be arbitrary in the field of traditional Chinese medicine.

Even if you are an old man and your teacher and uncle are in their teens, you should also make a big gift. This is the problem of generations, and it is also the fine traditional Chinese word "ritual".

Yang Ming laughed and said, "At my age, it's normal for them to have any doubts. I said maybe they believed it."

Lin Zhengyuan smiled and said,...