Combined with two examples of Yanzi Chunqiu, this paper talks about Yanzi's reasoning skills.

During the Spring and Autumn Period and the Warring States Period, the princes competed for hegemony. The victory or defeat of diplomacy became an important auxiliary means of the merger war at that time. When Yan Zi went to Chu, he was arrogant in front of the king of Chu and wanted to humiliate him for no reason. He clearly realized that this was not an insult to himself, but related to the dignity of Qi. So he was supercilious, calm and tit-for-tat in front of the tyrant King Chu, and made a strong counterattack. He also took the initiative to attack the king of Chu with weapons and put the hat of "making the people good at stealing" on the head of Chu. It shows the extraordinary courage and wisdom of a diplomatic envoy. Yan Zi left a short impression on the King of Chu, but every sentence was an ambush and forced question. In the end, he successfully conquered the other side, showing a diplomat's unique ability to deal with emergencies. However, the foolish and arrogant king of Chu finally fell into a fetter and completely surrendered. Yan Zi made a strong response to the insult of the Chu people. What is the reason for his victory? First of all, from his own point of view, he is flexible, witty and good at rhetoric. Secondly, he is good at using analogy. For example, in the article, "Let dogs enter from the dog door, and I will make Chu, not from this door", equating Chu with the dog country. For example, in the second story, he said, "oranges were born in Huainan and oranges were born in Huaibei. Their leaves are similar to those of their disciples, but they have different tastes. What's that? Soil and water are different. Now people's livelihood is better than Qi's, but they stole it when they went to Chu. If he has soil and water without Chu, then the people are good and thieves. " Fight back against the king of Chu. Third, the exaggeration he used also frightened the king of Chu. For example, when it comes to the people of Qi, we say, "There are 300 people in Qi, sweating like rain, shoulder to shoulder. Why is there no one? " The exaggeration of the image makes us feel that Qi people are everywhere, which more forcefully refutes "Qi people are nameless?" Question. Fourth, Yan Zi adopted the method of retreating for progress. Facing the king of Chu, "but what is the messenger?" Under questioning, Yan Zi lowered his status and said, "Everyone has his own master, the sage is a sage, and the unscrupulous is a corrupt master." . Babies are the most greedy, so it is advisable to make Chu Yi ",which ended in the embarrassment of the King of Chu.". In a word, it is precisely because of the metaphor and exaggeration used in Yan Zi's diplomatic rhetoric and the method of retreating that the King of Chu was speechless and Yan Zi's image became more vivid and prominent.