During the Three Kingdoms period, Cao Cao was the most intelligent and wise lord. Liu Bei was so able to pretend, but he was all broken by his words: The hero of the world, only the king is in charge! As for Sima Yi, he even saw it in his bones and warned Cao Pi: Be careful of Sima Yi, he is not a courtier, and he will definitely calculate the world of our Cao family.
It is precisely because Cao Cao can recognize people that he can use people, can use people and dare to use people, and finally unified the north, almost unified the world. So where is Cao Cao's skill in recognizing people? In fact, in the author's opinion, Cao Cao's secret of knowing people is all in the eight words of "Zhengqi juyi, righteousness and courage are complete".

First, the right strange one
The Art of War Cloud: To win with the right combination, to win by surprise. Cao Cao, a master of martial arts, also applied this to the art of knowing people. On the word "Zheng", the representative figure is Xun Yu, and the biggest help for Cao Cao's success is from Xun Yu. Because Xun Yu represents the positive image of Cao Cao's group. The word "Qi" is reflected in Cao Cao's attitude toward Jia Xu, which is also mainly elaborated in this article.
Jia Xu is known as the poisoner of the Three Kingdoms, and from this nickname given to him by later generations, it can be seen that Jia Xu's specialty is the best at "surprising victory". For example, during the Battle of Wancheng, Jia Xu gave Zhang Xiu a plan to kill Cao Cao's eldest son Cao Ang, nephew Cao Anmin, and the general Dianwei, and even Cao Cao and Cao Pi were almost killed.
It is reasonable to say that such a big hatred is a male lord with a broad heart, and it is not difficult to laugh and hate. But Cao Cao not only forgave Jia Xu, but also took his hand and said: The person who can make Cao Cao's credibility and fame in the world is you Jia Wenhe! From then on, Cao Cao relied heavily on Jia Xu, so much so that for such a major event as Li Shizi, Cao Cao needed Jia Xu to make up his mind, and finally chose Cao Pi.
Injassi said this: Boss, don't ask me about this. Because now I am thinking about how Yuan Shao and Liu Biao were defeated. This sentence still continues, Jia Xu surprised the routine of winning.
Therefore, this is the first feature of Cao Cao's secret of knowing people, mainly for the selection of civilians and wise men, if you want to be appreciated by Cao Cao, You and Qi, you must occupy one of them. But overall, Cao Cao preferred wizards. After all, the Three Kingdoms are a chaotic world, and wizards are easier to play.
At this point, Sima Yi is stained, because in a strict sense, Sima Yi also belongs to the category of wizards. And he was young and was a rookie of the younger generation, so Cao Cao did not kill him. As for Yang Xiushi, he is neither a wizard nor a righteous talent, but more important to the madman. But the madman happened to be a kind of person that Cao Cao did not like. Only because the madman has always been an embellishment of the prosperous world or the ordinary world, but the role in the chaotic world is not as good, the right talent and the wizard, some flashy.
Second, righteousness and courage are complete
Due to Cao Cao's poetic temperament and the chaotic environment of the Three Kingdoms, he did not attach importance to the word "loyalty", but was extremely partial to the brave warriors. This is mainly reflected in his selection of military generals.
For example, Cao Cao praised Guan Yu: the righteous soldier of the world! Quadinwe: The evil of the ancients comes. (Evil Lai, the first fierce general under the King of Shang, was extremely brave.) )
So why did Cao Cao prefer Guan Yu so much? Only because Guan Yu was righteous and courageous and complete- he did not abandon Liu Bei, which can be said to be deeply affectionate and righteous, which made Cao Cao both moved and pantothenic. Riding alone to cut yanliang is the embodiment of Guan Yu's bravery, which makes Cao Cao love it.
For example, Cao Cao's five sons and generals are also both righteous and courageous, even if they are forbidden. So these two, only one is OK? Not really! Cao Cao hated three people the most in his life, one was Liu Bei, one was Ma Chao, and the other was Lü Bu.
All three have one common problem: unrighteousness. Liu Bei's feelings are forgivable, after all, his ambitions have decided that he must be unjust to Cao Cao, but he is very righteous to others. Lü Bu and Ma Chao, on the other hand, are unjust to no one, even their families and benefactors! Therefore, this is the deep reason why Cao Cao wanted to kill Lü Bu.
When Cao Cao left Guo Jia and other cronies around him and instead asked Liu Bei, Lü Bu's tragedy was actually doomed. Because when Cao Cao summoned Zhang Liao, he did not ask anyone. Guan Yu was summoned and did not ask anyone, but Du Du Lü Bu asked Liu Bei, which showed that this was a set for Liu Bei.
If Liu Bei dared to say: Leave Lü Bu behind. Cao Cao will surely follow up: Have you forgotten how Lü Bu robbed you of Xuzhou? Could it be that I also want to raise tigers? At this moment, Liu Bei was under the fence, pursuing self-preservation, and if he was asked by Cao Cao in this way, he would surely make a lot of mistakes, and even he himself would not be able to run.
However, it should be emphasized that Cao Cao's righteousness and courage towards the military generals are more focused on righteousness. So-called, righteousness has responsibility! Therefore, the accurate description is that there must be responsibility! At this moment, looking at Lü Bu with the word "responsibility", it is obvious that Lü Bu's death is inevitable, and Guan Yu is so loved by Cao Cao, which is also inevitable.