It is impossible for a person not to make mistakes in this life, whether it is an emperor in a high position or a commoner who is humble to the dust, they will make mistakes. It is not terrible to make mistakes, it is terrible to know that you are wrong but you still insist on doing it, but some mistakes cannot be remedied. During the Three Kingdoms period, there was a very remarkable figure, who was recognized as a wise multi-star with the ability of divine ingenuity, and later became the minister of Shuzhong, and this person was the famous Zhuge Liang.
Everyone knows the "Three Gu Maolu", Liu Bei asked Zhuge Liang to come out of the mountain three times to help him, and Zhuge Liang was also touched by his sincerity and agreed. Although Zhuge Liang was a very wise man, as a representative figure of loyal subjects and wise men in history, he also made mistakes in his life. I believe that many people know that he "misused ma mo", it was because he insisted on reusing ma mo, that he would eventually fail miserably when leading the Shu army in the Northern Expedition, and Ma Mo was also beheaded.
Zhuge Liang's greatest failure in this life is to release one person who should be killed, and to kill one person who should be released. Speaking of this person who should be killed, he really deserved to be a villain, he was Yang Yi, Zhuge Liang knew that he was a villain before he died, but did not deal with him. And Yang Yi was a narrow-minded person, who had been staring at Zhuge Liang's position, and then it was also because he caused turmoil in the imperial court, if Zhuge Liang had directly disposed of him at that time, the imperial court would have been more stable.
And the person zhuge Liang killed who should be released was Wei Yan, a famous general. Speaking of Wei Yan's villain, there are still many people who are not convinced, but compared to Yang Yi, Wei Yan is much better. If Wei Yan had not died at that time, then in the later period of the Shu Han Dynasty, there would not be no generals available. If Wei Yan had not died, Shu Han might have been very brilliant, but he did not think that he would become someone else's wife, and eventually sacrificed in vain, so that Shu Han lost a big famous general.
Zhuge Liang's life is also very legendary, a very wise man, but at the same time he has made many mistakes. If the Shu Kingdom still had great generals alive, it was very likely that the three kingdoms would be unified, which was something that might happen. Zhuge Liang is very clever, but there have also been mistakes, so people are not perfect. Everyone has their own outstanding places, but everyone will make mistakes, but some mistakes can be corrected, and some mistakes are wrong once they are wrong, and the impact is also very large, so no matter what you do, you must think twice.