No matter whether you have watched the Three Kingdoms or not, you all know that there is a famous saying: Xu Shu entered Cao Ying without saying a word, because Xu Shu was in Cao Ying and his heart was in Han. So who is this Xu Shu? Why? Will you enter Cao Ying? Interested readers should take a look with the interesting history editor!

Xu Shu, whose courtesy name was Yuan Zhi, was born in Yangzhai, Yingchuan (now Yuzhou, Henan). A figure from the late Han Dynasty and the Three Kingdoms period, he loved fencing since childhood. He was arrested by the government for committing murder to avenge his friend. The soldiers repeatedly asked for his name but were refused. They had no choice but to tie him to a car and drive him around the market beating gongs and drums in order to let people who knew him name him, but they knew him. No one could bear to say that, but his friends took the opportunity to plan to rescue him. This incident caused a great shock to Xu Shu's mind. He realized that his own strength alone was not enough to eradicate the injustices in the world and punish all the pests in the world. So he decided to give up martial arts and follow literature, master the skills of governing a country and using soldiers, and benefit all people in the world. From then on, Xu Shu bid farewell to his martial arts friends, abandoned swords, guns, swords and halberds, and devoted himself to studying. When he first entered the school, his classmates learned that he had used force to break the law, and they were unwilling to associate with him. Xu Shu didn't mind this at all, he still went his own way and devoted himself to learning tirelessly. Because of his diligent study and talent, he made rapid progress in his studies. In addition, he was loyal, sincere, and open-minded, and he quickly gained the understanding of his teachers and classmates. While studying in the academy, he and Shi Tao (also known as Guangyuan) from the same county had similar interests and became close friends. From then on, he studied hard, visited famous teachers, and often discussed the current situation with the hermit Sima Hui. When Xu Shu was living in Jingzhou, Liu Biao, the shepherd of Jingzhou, invited Xu Shu to serve as an official many times. However, Xu Shu looked at Liu Biao and thought that although he was known as the prince of the royal family and had a reputation as a courteous and virtuous gentleman, he was indecisive in nature. He knew that he could not do good things and could not get rid of evil.

In the sixth year of Jian'an (201), the sixth year of Emperor Xian of the Han Dynasty, Liu Bei, who was defeated in the Central Plains, came to seek refuge with Liu Biao. Liu Biao was suspicious of him and asked him to station troops in the new fields to resist Cao Cao. Through observation, Xu Shu discovered that Liu Bei was ambitious, talented, and could treat his subordinates well, so he was known to be popular. So he went to Xinye to meet Liu Bei. Liu Bei was deliberately making friends with the knowledgeable people in Jingxiang area, and he was overjoyed that the famous Xu Shu came to seek refuge with him. Liu Bei valued Xu Shu's talents and character very much, and immediately kept him in the camp and entrusted him with important tasks, allowing him to participate in rectifying the military and training soldiers.

In the ninth year of Jian'an (204), Liu Bei took advantage of Cao Cao's opportunity to send troops to Hebei to attack Yecheng, and sent troops to plunder territory as far north as Ye County. Cao Wei general Cao Ren, who stayed behind in Xuchang, led Yu Jin, Li Dian and others to send troops to resist. Because Liu Biao refused to send troops to help, Liu Bei's weak generals were unable to stop Cao's army. At this critical moment, Xu Shu suggested setting fire to the stronghold and pretending to retreat, and then sent Guan Yu, Zhang Fei, Zhao Yun and other troops to ambush to wait for Cao's pursuit. Cao Ren didn't know there was a deceit, and despite Li Dian's dissuasion, he led his Qingqi with Yu Jin to pursue Liu Bei. Liu Bei's ambushed troops launched an attack at the same time and surrounded Cao's army. Cao's army suffered heavy casualties. Liu Bei turned defeat into victory, and with no danger at all, he calmly withdrew his troops and returned to Xinye.

Xu Shu's outstanding military talents made Liu Bei overjoyed and praised Xu Shu for his talents as a king's assistant. At this time, Cao Ren reported to Cao Cao after his defeat that Xu Shu was serving as a military advisor in Liu Bei's army. Cao Cao quickly summoned counselors Cheng Yu and Xun Yu, and asked Xun Yu: "Compared with you, Xu Shu, who is more powerful?" It will be difficult for the wise man to return to Liu Bei and make him full of feathers." Cheng Yu then proposed a plan to Cao Cao.

The next day, Cao Cao sent people to Xu Shu's house and invited his mother to join the army so that she could be raised respectfully. Unfortunately, the old lady didn't appreciate it. Not only did she not write a letter to recruit her son to Cao Cao, but she cursed Cao Cao. Cheng Yu had no choice but to imitate Xu's mother's handwriting and write to Xu Shu, saying that his mother was in Cao's camp and urging Xu Shu to surrender to Cao, otherwise his mother's life would be in danger.

When Xu Shu heard the news, he was heartbroken and bid farewell to Liu Bei with tears in his eyes. He pointed at his chest and said: "I planned to have sex with the general to pursue the great cause of kingship. Only God can express my determination. Unfortunately, my mother was kidnapped and everything is in chaos. Even if I stay with the general, it will not help. Please The general allowed me to say goodbye and go north to take care of my old mother!" Although Liu Bei was reluctant to let Xu Shu leave him, he knew that Xu Shu was a well-known filial son and could not bear to see his mother and son separated. He was even more afraid that if Xu Shu's mother was killed, he would lose his own flesh and blood. Because of the crime, he had no choice but to say goodbye to Xu Shu in tears.

After Xu Shu went north to return to Cao Cao, he was still very attached to his old master Liu Bei and his good friend Zhuge Liang.

Although he had outstanding strategies and talents, he was unwilling to advise Cao Cao and became enemies of Liu Bei and Zhuge Liang. Therefore, Xu Shu stayed in Cao Wei for decades, but never made any political or military achievements, and was almost unknown. This is what people often say: "Xu Shu entered Cao Ying without saying a word." During the Huangchu period of Emperor Wen of Wei Dynasty (220-226), Xu Shuguan became Youzhonglangjiang and Yushi Zhongcheng. In the third year of Emperor Taihe of Wei Ming Dynasty (229 years), Zhuge Liang left Qishan Mountain three times to conduct a northern expedition to the Central Plains. When he heard about Xu Shu's experience after returning to Cao Cao and entering the Wei Dynasty, he couldn't help but sigh for his friend's life.

Although Xu Shu had a misfortune and a bumpy road throughout his life, he did not accomplish anything earth-shattering in the end. But his character and character of being loyal, honest, filial to his relatives, and recommending talented people will be passed down to future generations forever.

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