What will happen if the seven orifices are opened to the six orifices?

Explanation of "Knowing Nothing"

Jilin Li Hui

There was once such a joke:

The son of a wealthy family studied with the teacher. I came and went to study, but learned nothing. The rich man was very concerned and asked the teacher: "How are my children doing in their studies?" The teacher thought about it, what should he say? Did you learn well? That's not the case at all. Are you saying you didn’t learn well? And he was afraid that the rich man would be angry. Later, the teacher came up with a perfect explanation: "Your child has seven orifices open to six orifices." When the rich man heard this, he was very happy. All seven orifices were open to six orifices, which was very good. As everyone knows, the teacher means: knows nothing.

What does "knowing nothing" mean? Quite simply, the metaphor doesn’t make sense at all. This idiom does not come from this joke, but from another source:

King Zhou of Yin was a famous tyrant in history. He was so cruel and cruel that the country was in danger. At that time, many people did not dare to advise King Zhou and sighed secretly. King Zhou's uncle Bigan thought that he was his uncle. If he tried to persuade him, he would definitely repent. Therefore, he boldly tried his best to persuade King Zhou to practice good deeds and correct his evil ways. Unexpectedly, King Zhou not only refused to listen, but became angry and killed Bigan. He performed a dissection and performed a heart examination to see how Bigan's heart grew.

When Confucius heard about this, he said angrily: "If his orifices are clear, he will be immortal than Qian." Confucius meant that King Zhou's seven orifices were not clear at all. If there was someone who knew everything, Bigan wouldn't have died.

Today's "know nothing" is still widely used by people in life, such as "I really know nothing about this question." "She knows nothing about computer technology."