Liu Bei, Cao Cao, and Zhuge Liang are all extremely famous figures, they have courage and strategy, each of them is a famous person in the Three Kingdoms period, and Zhuge Liang is the most loved Three Kingdoms figure, because he is like a modern prophet, whether it is in the military or literary and political outstanding figures. But perhaps it was also because Zhuge Liang was too good, which led to the country at that time relying on him particularly, requiring Zhuge Liang to give advice on everything, losing his ability to distinguish himself, so Shu Han perished less than a few decades after Zhuge Liang's death.

I remembered that when Shu Han fell, he could not be separated from his son, and at that time, when Shu Han was born and died, Jiang Wei, as the top pillar, led the army to fight in another place, and it was difficult for one person to take care of two places, so when Deng Ai, a general of the State of Wei, led an army to attack Shu Han, everyone panicked, and the only person who could hold power at that time was Zhuge Zhan. At that time, his subordinates discussed with him not to send troops, and then to discuss a good way to send troops, but he did not listen to the opinions of his subordinates and still sent troops. In the end, they failed and his son was killed.
Let's analyze the reasons, why did he not listen to the advice or try to send troops? There are two reasons for this. They are one good and one evil, one evil one has no ability to get rid of it, and one good one tries his best to let him go. He repented at the time of his early demise, saw through the final direction of the country, and could not resist the struggle. The first person was a traitor named Huang Hao, and in today's imperial court, it is actually acceptable to say that there is a traitor, but the problem is that he is particularly favored by Liu Chan, and this traitorous minister is blessed by Liu Chan's trust, greedy, confused Liu Chan, and interferes in the government of the dynasty in various ways. Although he was Liu Chan's son-in-law and held various important positions, he just couldn't do anything about it, because his ability was not good.
The second person was Jiang Wei, who was absolutely loyal, but Zhuge Zhan was not friendly to him. Because Jiang Wei has always felt that Zhuge Liang's attack is the best strategy for the establishment of the country, but this way makes the people unable to enjoy peace, as a small country of Shu Han, it is even more unable to withstand years of conquest, so many people are dissatisfied with his way. Unfortunately, however, Zhuge Zhan stood on his opposing point of view, and he did not agree with the view of attacking and defending, so he wanted to get rid of him as soon as he had the opportunity. The infidelity has not yet been able to be eliminated, and the two loyal subjects have opened a mode of infighting, and the country is in crisis, and it is impossible not to want to perish.
Many people say that this is because Zhuge Liang's education method is problematic, he only pays attention to teaching his son how to serve the country faithfully, but he does not really teach him the ability to manage politics, resulting in his son's lack of enthusiasm and inability, which is also the indirect reason why his son Zhuge Zhan cannot get rid of internal traitors. This is Zhuge Liang's fault, but also his own fault, he himself did not have the ability to learn, did not want to consult others, only believed that he was alone with his head on the head, in the end he was still shallow, too arrogant, unwilling to put down his face. However, in the end, Zhuge Zhan understood this truth, he should not refute Jiang Wei, but should consult with him and jointly find the right way, can the two loyal ministers join forces and be afraid of not being able to kill the traitor? Unfortunately, he realized it too late, and it is estimated that Zhuge Liang could not have imagined that the country he had worked so hard to regulate would eventually perish indirectly in his hands.
From the current point of view, a person seems to be small, in fact, an action, then led to the action of a group of people, as the influence of the leader, that is even more huge, Zhuge Zhan stood on a high place, facing the country's ruin, but because of the ability of no way, do not know how to use people and cooperation, do not know how to gather common ideas, this is doomed to Shu Han is a tragedy.