Reason: Although Shang Yang's political reform made Qin powerful, it also violated the interests of some people in the DPRK, making people jealous, and so did the so-called Gao Zhen Lord.
Shang Yang is a legalist, advocating the rule of law, the law is merciless, and the princes and nobles are treated equally. At that time, the prince's mother-in-law violated the ban and was punished according to law. However, considering that the future monarch will be a prince and his body belongs to the country, it is not easy to be punished. If it's broken, it's a national loss. Therefore, Gong Ziqian, a teacher, was punished with ink on the grounds that his teaching was unfavorable and his nose was cut off.
This made the monk very unhappy. Of course, godliness is more hateful. When the new Lord came to power, he wanted to take this opportunity to get rid of him. He also supported the teacher's revenge. At that time, Shang Yang wanted to go back to Wei, but Wang Wei refused to stay at the border and was forced to come back.
I want to launch a city soldier to attack Zheng county, but the strength of Qin state can't be regretted by just a city soldier, so I lost like a mountain and died in the front. Then the body was taken back to Xianyang, and the car was divided before everyone else, and then I was implicated by nine families.
In fact, it can be seen that Shang Yang is facing almost a dead end. Although his reform made Qin strong, he must die.
King Huiwen of Qin knows the benefits of political reform, so he will certainly maintain it. But Shang Yang must die. Yu Gong, Shang Yang never dies, and the new Wang Yongyuan lives in the shadow of Shang Yang. The new king needs to be domineering and become the axis of the whole Daqin. In addition, the old gentry hated the political reform, and the new king's support for the political reform was bound to arouse the resentment of the old gentry. This political reform has been completed, and Shang Yang has also completed his political reform mission. Therefore, Qin Huiwen, who ascended the throne first, had to kill Shang Yang in order to calm the anger of the old gentry. Shang Yang must die.
Privately, when Qin Huiwen was a prince, his nose was cut off because he broke the new law. Finally, Shang Yang will die, and the political reform will remain unchanged.
Shang Yang's most successful place is that he met a wise master and achieved himself. The most unsuccessful thing is that he touched the interests of many people but didn't know how to protect himself. Thanks to Gao Zhen, he finally launched a rebellion against the city soldiers, which was even more self-destructive. Although it was forced, in any case, rebellion was the most intolerable thing for the monarch, so he was finally punished by splitting the car, and the nine families did everything they could.
It is worth mentioning that although Shang Yang died, his political reform achievements were not overthrown by the monarch and are still in use.