Lin Xiangru was a minister of Zhao in the Warring States Period. At first, the official ordered Mr. Xie Lun. Zhao Huiwen, Zhao Haoqi, king of Qin, wrote to the king of Zhao, wishing to exchange fifteen cities for "He Shen Treasure". Lin Xiangru was ordered to take "money" to the State of Qin. The court argued, and he responded tactfully and finally returned to the State of Zhao. In 279 BC, the king of Qin and the king of Zhao met in Mianchi (now Mianchi West, Henan Province). He accompanied Zhao Haoqi and Cheng Xiao, reprimanded the powerful state of Qin face to face, and did not disgrace the country, so that the prince of Zhao did not disgrace the country. Because of his achievements, he was appointed as an official, ranking above Lian Po. According to legend, Lian Po refused to accept each other by virtue of his merits, endured humiliation and dragged out an ignoble existence, and threatened to humiliate each other. In order to maintain harmony among the people and prevent foreign enemies from taking advantage of it, Lin Xiangru has always avoided tolerance. Lin Xiangru put national interests first, and the spirit of humility touched Lian Po, so he personally went to Lin Xiangru's house to offer a humble apology, and the two became friends of the lion's neck. There is also a famous historical story about Lin Xiangru: There is a treasure jade named Heshibi in Chu State, which was acquired by Huiwen of Zhao Haoqi. After hearing this, King Zhao of Qin expressed his willingness to exchange 15 for Heshibi. Zhao Huiwen summoned Lin Xiangru, and Lin Xiangru offered to take Cui to Qin. If Zhao gets the city of Qin, she will stay in Qin, otherwise, she will return to Zhao intact. When Lin Xiangru arrived in Qin, he presented Choi. The king of Qin was overjoyed, but he didn't give these cities to Zhao. Lin Xiangru said that the jade had a small flaw and wanted to show it to Qin, so he took Baoyu back. He stood by the court pillar and said, The prince of Zhao is worried that the state of Qin is strong and refuses to give the jade to the city. I persuaded him to agree. Stop fighting for five days, and then let me come with Bi to show my respect and respect for the majesty of Qin. Unexpectedly, the king's etiquette is simple and slow, and he has no sincerity to deliver it to the cities. Now, if the king must take Baoyu away, I'd rather smash my head on the post with Baoyu. The state of Qin had no choice but to leave the city of 15 to Zhao. Lin Xiangru estimated that the king of Qin just pretended to cope, so he proposed to fast for five days, and then communicate seriously. King Qin Zhao had to agree. Lin Xiangru sent his entourage to secretly return to Zhao from the path. After Qin Zhaowang fasted and held the exchange ceremony, Lin Xiangru told Qin Zhaowang about sending Choi back to Zhao, thus preserving Choi.