"Bo Su Crys for Qin" is an ancient story in China, which tells the story of Bo Su, a doctor of Qi State, crying when he took refuge in Qin State during the Warring States Period. According to legend, around 284 BC, Bosu was ordered to go to the State of Qin to have a heated debate, leaving a famous saying that "the military forces in the world are as big as a dime".

However, when he came to Qin, he found himself cheated by Qin. Instead of benefiting, he is in danger. On his way back to Qi, Bo Su went to Xianyang, Shaanxi, and saw that Qin Jun was powerful, disheartened and sobbing.

He lamented: "Why should I go to Qi? Being in Qi is not necessarily safer and happier than being in Qin! " So he turned to say goodbye to everyone with tears in his eyes and finally stayed in Qin. This story conveys a profound truth: people should cherish what they have now and don't always pursue external material and interests, otherwise they may lose more.

Facing the fall of Qin.

Now, in the face of the demise of Qin, he learned from a bitter experience and chose a unique way to express his loyalty. He decided to sing and cry in the city to express his loyalty to the country and the royal family. He cried: "Since the founding of the State of Qin, it has been conquering Liuhe, collecting Koguryo in the north, offering Baiyue in the south, breaking the wind in the east and setting Bashu in the west.

Great achievements and fame. Although I am in Xianyang today, I am a courtier of Qin. Can I watch the country collapse and run for self-protection? In order to serve my country, I would like to dedicate my soul to the throne and help the world. "Bosu's every move touched many people, so Ji Xiang, the general of Chu, strengthened the protection of Bosu to prevent him from being hurt. Bosu's performance has also been praised by many people in history.