The only lesson that mankind has learned from history is that mankind has not learned any lesson from history
Cao Cao spent his whole life fighting for his ideal kingdom, step by step, step by step, becoming a generation of tyrants in the world! The reason why Cao Cao was able to achieve such an achievement was because of his own talent and strategy, and of course, it was very important that Cao Cao was a first-class employment master during the Three Kingdoms period. As we all know, during the Three Kingdoms period, Cao Cao gathered around all kinds of people and horses: five good generals, eight tigers riding numbers, wenchen military generals, and many three or four hundred people from all walks of life, each of whom was a hero and a good man; not only that, when the State of Wei was not yet established, Cao Cao took precautions and arranged the posthumous affairs before his death, which was simply paving a road for Cao Pi. But how did Cao Pi do it? He killed all the talents who could restrain the Sima family one by one, making Sima Yi laugh to the end.
Cao Pi was incompetent and narrow-minded
Cao Cao had many sons, but they all died prematurely during the turbulent period, because of the change of dynasty, Cao Cao had to make a choice, so he chose Cao Pi, who was still outstanding in all aspects at that time. Although Cao Pi had some talents, he was very mediocre compared to Cao Cao, and Cao Pi's heart was far less broad-minded than Cao Cao's. Because he had a dispute with his younger brother Cao Zhi for the throne, he did not reuse all the strategic ministers who had supported his brother, except for the differentiation of talents and other physical reasons, when Cao Pi succeeded to the throne, the power of the civilian generals who could be used had been greatly weakened.
The only people who could be reused by Cao Pi when cao pi succeeded to the throne were Zhang Liao, Xu Huang, Cao Ren, Cao Hong, Cao Xiu, Xiahou Shang, and Cao Zhen, among whom Cao Cao named the people who had the ability to restrain the Sima family: Zhang Gao, Xiahou Shang, Cao Xiu, and Cao Zhen.
Reused talents have passed away
The talents reused by Cao Pi were also dragons and phoenixes among people, of which Zhang Guo, one of the four pillars of Hebei, was one of the best. In fact, Zhang Gao was a general who surrendered to Cao Cao in the early years, but because he was loyal and capable, he was always used by Cao Cao, and Cao Cao had to take him with him in all four conquests, holding military power, so he was fully capable of balancing Sima Yi. But in the end, he was caught in the trap of the Sima family, and at the last moment of his life, for Cao Wei, he had to rush forward and fight hard in the trap knowing that it was a trap, but in the end, no miracle happened, and he was in danger and died through his heart.
Xiahou Shang was Xiahou Yuan's nephew, and his ability was also relatively outstanding, and he was also used by Cao Pi at first, but later Cao Pi was at odds with Xiahou Shang's favored concubine and his wife Cao Shi, so Cao Pi intervened and sent someone to kill his favorite concubine, which made Xiahou Shang sad, and only a year later, Xiahou Shang fell seriously ill and died later.
Cao Xiu was hailed by Cao Cao as a talented man of the "Thousand Mile Colt", and was appointed by Cao Pi as the general of Zhennan, responsible for defending against Sun Quan. When Cao Pi was alive, he attacked Eastern Wu with repeated victories, and before cao Pi's death, he was entrusted to assist Cao Rui with him and other ministers, but he was promoted to Sima Da, becoming the supreme commander of Cao Wei's army, and then fighting against Eastern Wu was almost completely destroyed, so he was ashamed and embarrassed, and died of illness shortly after the recurrence of the old disease two years later. In fact, Cao Xiu was a capable person who could balance the Sima family, but he had no choice but to survive Sima Yi.
Cao Zhen was Cao Cao's adopted son, younger than both Cao Pi and Sima Yi, but he was a military general that Cao Pi attached great importance to, and the last person in the Cao family who had the ability to balance Sima Yi. After Cao Pi succeeded to the throne, he made Cao Zhen a general of Zhenxi, and then promoted to the rank of general of the Shangjun Army, becoming one of the supreme commanders of Cao Wei's army, and he was also one of the auxiliary ministers entrusted by Cao Pi. After Cao Rui succeeded to the throne, Cao Zhen's status was only inferior to that of Sima Cao Xiu. After Cao Zhen came to power, he thwarted Zhuge Liang's Northern Expedition and took over as Sima Dai after Cao Xiu, but within two years Cao Zhen also unfortunately died of illness, and the Cao family lost a military general capable of balancing Sima Yi.
In fact, there were many people who could balance the Sima family among the talents left by Cao Cao, but most of them were killed by Cao Pi and were not reused, and those who were reused did not get a good death, so Sima Yi's head was a blind cat bumping into a dead rat, and the people who had the ability to balance him disappeared one by one effortlessly, and this situation is probably something that Cao Cao did not dare to imagine no matter what!