Three visits to the thatched cottage: "The first emperor didn't treat his ministers unfairly, but was wronged by his accusations. Go to the thatched cottage three times to take care of his ministers. " This idiom comes from "teacher's watch". As for the story, the world was in chaos at the end of the Han Dynasty. Cao Cao sat in the imperial court, Sun Quan supported Dongwu, and Liu Bei, an imperial clan of the Han Dynasty, heard from Xu Shu and there that Zhuge Liang was well-read, so he and Guan Yu and Zhang Fei came to Wolonggang in Longzhong with gifts and asked Zhuge Liang to come out to help. It happened that Zhuge Liang went out that day, and Liu Bei had to go home disappointed. Soon, Liu Bei, Guan Yu and Zhang Fei braved the snowstorm and invited them for the second time. Unexpectedly, Zhuge Liang went out for a walk again. Zhang Fei doesn't want to come again. Seeing that Zhuge Liang was not at home, he urged him to go back. Liu Bei had to leave a letter expressing his admiration for Zhuge Liang and asking him to come out of the mountain to help him save the country's crisis. After a while, Liu Bei was a vegetarian for three days and was ready to invite Zhuge Liang again. Guan Yu said that Zhuge Liang may have a hollow reputation, but he may not have real talent and learning, so he doesn't have to go. Zhang Fei, on the other hand, advocated that he should make a phone call alone and tie it up with a rope when he didn't come. Liu Bei scolded Zhang Fei and went to visit Zhuge Liang with them for the third time. At this time, Zhuge Liang was sleeping. Liu Bei dare not disturb him. He stood until Zhuge Liang woke up and sat down to talk to each other.

The first emperor didn't mean to be a minister, but he was self-defeating, and the grass cared about the minister. Meaning: The first emperor did not degrade my status because of my humble background and short knowledge, but visited me in the grass many times.