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Chen Jinshou's Biography of the Three Kingdoms and Wei Zheng's Returning to the Hometown: Returning to the Hometown and Public Soldiers Pei Songzhi quoted the Spring and Autumn Annals of the Han and Jin Dynasties: "Everyone knows the heart of Si Mazhao."
In Wei, Shu and Wuzhong, Wei has a vast territory, a large population, rapid economic development and the strongest strength, but its power gradually falls into the hands of the Sima family.
When Cao Pi established the State of Wei, he was supported by the general Sima Yi. After xelloss's death, Wei Mingdi Cao Rui acceded to the throne. When Sima Yi and his sons Sima Shi and Si Mazhao were in power, their ambition to usurp the throne became increasingly obvious. Di Wei Cao Mao once said angrily to the minister, "Everyone knows Si Mazhao's heart. I can't wait for him to inherit the throne. " Soon, Cao Mao planned to get rid of Si Mazhao. As a result, it was exposed and killed by Si Mazhao. Sima Zhaoli Cao Huandi. From then on, in the Cao Wei regime, no one dared to openly oppose Sima's rule.
In 263, Wei destroyed Shu. In 265, Sima Yan, his son, abolished the Wei Emperor and claimed to be the emperor. His name was Jin, and his capital was Luoyang, which was called the Western Jin Dynasty in history. Sima Yan is the Emperor of Jin Dynasty. In 280, the Western Jin Dynasty attacked Wu on a large scale, and Wu surrendered. The Western Jin Dynasty unified the north and the south, ending the split situation since the end of the Eastern Han Dynasty.
This has also become the source of the allusion "Si Mazhao's heart is well known", which means that the ambition is very obvious and is known.