In the Western Han Dynasty, Su Wu was imprisoned for nineteen years when he went to Xiongnu. He was indomitable and never surrendered, and finally returned to the Han Dynasty. As a national hero, Su Wu's deeds were widely celebrated by later generations.
According to historical records, after Su Wugang was detained, Xiongnu Khan sent Li Ling to surrender, which was flatly rejected by Su Wu. /kloc-When Su Wu was defeated by Korea in 0/9, Li Ling was very envious. He once bought wine to send him, which shows Li Ling's depressed mood.
In Sima Qian's works, except surrender, Li Ling can be said to be a perfect person. Sima Qian said that he and Li Ling are both officials in the palace, and the relationship on the wine table is average, with different interests and no friendship. However, observing people, stressing filial piety and trustworthiness, regardless of life and death for the country. It is precisely because Li Ling is not that kind of "bad" traitor. Therefore, although he bears eternal infamy, as an alien, he lived in Xiongnu until his death, and his suffering in his heart became the ink point of some literati in later generations. Therefore, they invented poetry and named it Li Ling to express their homesickness. Therefore, Li Ling also won the sympathy of many people in later generations. As a tragic figure, Li Ling's life is also worth knowing.