What is the story of "regret on the wheel platform"?

Emperor Wu of the Han Dynasty had great ambitions since he was a child. He likes reading and attaches importance to intellectuals and talents. In the year when he succeeded to the throne, he issued an imperial edict requiring ministers to recommend talents to themselves, especially those who are knowledgeable, courageous, dare to tell the truth and have good moral character. In a letter, governors and ministers from all over the country took active actions together. Before long, more than 100 talents were selected from all over the country.

When Emperor Wu of the Han Dynasty received the application forms from all over the country, he immediately met these talents selected from all over the country, called them together and asked them one by one, all about how to govern the country and how to rectify politics. Finally, everyone was asked to write an article to elaborate their views. In less than half a day, the answer sheet was handed over to Emperor Wu of the Han Dynasty.

Emperor Wu of the Han Dynasty collected these answers and looked at them one by one. Most of them are old-fashioned words, full of empty talk and nothing new. When Emperor Wu of the Han Dynasty read the answer sheet of a scholar named Dong Zhongshu recommended by Guang Chuan County (now southwest of Jingxian County, Hebei Province), his eyes lit up and he read the article several times in a row, applauding repeatedly. It turns out that Dong Zhongshu put forward in his article that the countermeasures for governing the country are: first, running schools, and second, selecting more talents with good moral character. He also put forward the theory of great unification, saying that it is necessary to increase imperial power, unify laws and regulations, and strengthen control over various regions. Finally, Confucius' Confucianism is put forward as the concept of governing the country, and anything that does not meet the requirements of Confucius' Confucianism should be excluded. In this way, the people have a unified standard of action and the country is easy to manage. This is the origin of "ousting a hundred schools of thought and respecting Confucianism alone".

Emperor Wu of the Han Dynasty was active in thinking, advocating the unification of the world and fantasizing about governing the country and securing the country, surpassing all wise monarchs in ancient times. Therefore, Dong Zhongshu's theory just meets the requirements of Emperor Wu of Han Dynasty, and he greatly praised Dong Zhongshu. Many aspects of Emperor Wu's life-long practice of governing the country were carried out in accordance with Dong Zhongshu's theory.

Emperor Wu of the Han Dynasty has a great weakness, that is, he is superstitious about ghosts and gods and often asks God for advice, hoping that he can live forever. Some speculators took the opportunity to play tricks on Emperor Wu of the Han Dynasty, saying that he was an emperor who integrated heaven and man and the wisest and greatest king since ancient times. They also refined a lot of Dan medicine for him to eat, saying that he could live forever after eating it. Every time we send troops to fight, there are people who play tricks on Emperor Wu of the Han Dynasty and pray for God's blessing. Emperor Wu of the Han Dynasty believed in these things very much.

But one thing changed Emperor Wu's attitude towards ghosts and gods, and made him make a thorough review of his life's behavior. This is the incident of Li Guangli, the general of the Second Division, surrendering to Xiongnu.

In 90 BC, the Huns attacked Wuyuan (now northwest of Baotou, Inner Mongolia) and Jiuquan (now Jiuquan, Gansu) in the Han Dynasty. Emperor Wu of the Han Dynasty sent Li Guangli and others to lead 70,000 troops to meet them. Before Li Guangli sent troops, he consulted with the Prime Minister Liu Quli and asked Liu Quli to try to make his nephew Changyi Wang a prince. Liu Quli and his wife invited a witch at home to curse Liang Wudi's early death. As long as Liang Wudi dies, they will cooperate with Li Guangli and make King Changyi emperor. But when this incident was reported, Emperor Wudi was furious and killed all the prime ministers Liu Quli and Li Guangli, even bringing trouble to many court officials. Li Guangli surrendered to the Huns when he heard about it earlier.

After Emperor Wu of the Han Dynasty killed the Li Guangli family, he couldn't figure out why many things were related to ghosts and gods. Are all the blessings of ghosts and gods false?

I also thought that I sent a lot of alchemists (people who specifically asked for an alchemist) to invite immortals to worship God. They say that immortals have been found in the East China Sea, but why not? By this time, Emperor Wu of the Han Dynasty was over 70 years old and his health was getting worse and worse. He wants to ask for immortality and see if God's affairs are true or false.

Emperor Wu of the Han Dynasty came to Donglai (now Longkou, Shandong Province) with many alchemists, ready to board the ship and go out to sea to seek immortality himself. As soon as he boarded the ship, there was a sudden gust of wind at sea, and huge waves hit the ship like hills, which scared Emperor Wu of the Han Dynasty to retreat a few steps, dismissed the idea of going to sea and ordered him to go back to Beijing. Emperor Wu of the Han Dynasty crossed Mount Tai to offer sacrifices to the gods, and summoned his ministers to say, "Since I became emperor, my behavior has been quite chaotic, and the people of the whole country have suffered a lot after me. In the future, anything that harms the interests of the people will be banned! " The official name of Dahonglu is Tian. He said, "Now the imperial court has appointed many alchemists. They just talk about immortals all day and waste a lot of national materials. They should be ordered to go back to their hometown to work. "

Emperor Wu of the Han Dynasty felt that Tian was right and immediately ordered the dissolution of all alchemists.

Sang Hongyang, a captain of Susu, wrote: "Luntai (now southeast of Luntai, Xinjiang) has more than 5,000 hectares of paddy fields, so troops should be stationed here to prevent foreign enemies from invading while plowing." By this time, Emperor Wu of the Han Dynasty had realized that years of war had made the people miserable and felt that the old policy could no longer be implemented. So he wrote an imperial edict on Sang Hongyang's performance, which was called "Guilt yourself", saying that he didn't want to send troops to far away places to fight with neighboring countries. These acts did great harm to the country in the past. At present, the most important thing is to develop agricultural production, get rid of those heavy taxes and harsh laws, and let the people live a stable life. The imperial edict also reviewed his mistakes in waging war in the frontier for many years.

After Emperor Wu of the Han Dynasty promulgated the imperial edict, he did change some bad behaviors in the past and seriously governed the country. "Rebellion against imperial edict" is the expression of Emperor Wu's correct understanding and evaluation of himself.