In the chicken rib incident, Cao Cao attacked Liu Bei and personally led the troops to attack Hanzhong. Because of the natural conditions and the objective environment at that time, Cao Cao's attack was not beneficial, and he was afraid of being laughed at and affecting his authority. This is a dilemma.

The password that night, Cao Cao casually said a chicken rib. Originally, only Cao Cao knew the difficulty. It happened that Yang Xiu said, "Chicken ribs taste like meat, but it would be a pity to throw them away. Cao Cao has decided to retreat. " .

As the secretary of the leader, Yang Xiu guessed the leader's mind and should help the leader solve this dilemma. At this time, Yang Xiu should think that Cao Cao stepped down a step and needed an event to explain the rationality of withdrawing troops.

Clever Yang Xiu did the opposite. Instead of helping solve the problem, he told everyone about the problem of the leader. This behavior only shows that Yang Xiu is clever, but not clever. Judging from this matter, Yang Xiu is a man who lacks great wisdom.

As the supreme commander of the army, Cao Cao is the soul of the army. Cao Cao has always been clear about rewards and punishments. When a general goes out to war, he has to be punished for no work, but Cao Cao can't attack at this time, which is a great test of the wisdom of the leader.

The attack could not be advanced, and Liu Bei was defending the terrain. Moreover, in Hanzhong, the supply of troops is difficult, and Cao Cao is afraid of affecting his authority, so it is very important to retreat.

At this time, Yang Xiu stabbed him in the back again, which made him lose his dignity. Cao Cao is not open-minded, and Yang Xiu's behavior makes Cao Cao unbearable.

Extended data:

Yang Xiu family:

Yang Xiu, the great-grandson of Yang Zhen and the son of Yang Biao, was born in a family handed down from generation to generation. The Book of the Later Han Dynasty said, "From the earthquake to the tiger, the fourth Taiwei". He was eager to learn and talented. During Jian 'an period, he was promoted to a doctor of filial piety, and later served as prime minister Cao Cao's main book.

At that time, Cao Cao was involved in military affairs, and Yang Xiu was in charge of internal affairs and foreign affairs, which was exactly what Cao Cao wanted; Shi Shuo Xin Yu Wu Jie Pian contains four things about Yang Xiu's talent, which Cao Cao once lamented.

Yang Xiu is polite, knowledgeable and extremely intelligent. During the Jian 'an period (196-220), he was elected as Xiaolian, soon became a doctor, and later changed to Cao Cang, the prime minister's office.