The king of Qin wanted to see the weakness of Dunhuang studies. The weakness of Dunhuang studies said: "It is my duty not to bow, and it is enough for your envoys not to bow. No, I didn't see it. " The king of Qin agreed. Therefore, Dunzi said: "There are people in the world who have no real name, people who have no real name, and people who have no name. What does Wang know? " The king said, "Lie down." Light said: