First, be patient and self-denying, and be ambitious. Fan Zeng, Xiang Yu's counselor, saw clearly Liu Bang's real intention of entering Shanhaiguan: "When Pei Gong lived in Shandong, he was greedy for money and loved Maggie. Now that he has entered the customs, women have gained nothing. This ambition is not small. " Originally, Liu Bang was also a greedy and lewd man, but in order to realize his grand goal at an early date-to establish hegemony. Xiang Yu laid a good mass foundation for his future chances of winning. At the Hongmen banquet, in order to show his power over Liu Bang, Xiang Yu deliberately sat in the east and let Liu Bang sit in the north. At this time, Liu Bang knew that Xiang Yu was deliberately belittling himself, but for his own great cause, he still endured and sat down.
Second, make good use of talents and be modest. Liu Bangshan makes good use of talents, and Sean, Fan Kuai and other talented people are loyal to him. At the same time, he is open-minded and good at adopting other people's opinions. Every time he moves, he will bow his head and ask for advice. Before the hongmen banquet, he listened carefully to Sean's opinions, wooed Xiang Bo, and respectfully "acted as brothers" and "acted as friends". In order to dispel Xiang Yu's doubts about himself and accept Xiang Bo's advice, he went to Hong Men early the next morning to apologize to Xiang Yu, thus gaining the trust of Xiang Yu. Fan Zeng knew the real intention of Liu Bang's entry into the customs for a long time, so he took the opportunity to murder Liu Bang at the Hongmen Banquet, and then another murder occurred at the Hongmen Banquet. In order to escape alone, Liu Bang once again accepted Fan Kuai's suggestion and finally escaped the crisis of beheading at the Hongmen banquet.
Third, make a calm and decisive decision. After Liu Bangxian entered the Shanhaiguan Pass, Xiang Yu was furious because of Cao's informer and Fan Zeng's fanning the flames, and he was ready to attack Liu Bang the next day. In an emergency, Liu Bang didn't lose his temper. He thought that attacking Xiang Yu's 400,000 troops with his own 100,000 troops was tantamount to throwing eggs at stones. So he didn't want to be brave, but settled down and talked to all the counselors. Get Xiang Bo at once. After Xiang Yu told Cao that he was an informer at the Hongmen banquet, he kept his mouth shut, but when he returned to the barracks, he immediately killed the traitor. This decision of Liu Bang made a decisive decision, which eliminated hidden dangers for his great cause in the future. Seeing that the tense banquet atmosphere eased slightly, Liu Bang seized the favorable opportunity and fled under the pretext of "going to the toilet". When he thought of countermeasures to escape, he carefully confessed to Sean.
Fourth, be flexible. In order to resolve the opposition between the two armies and protect himself, Liu Bang went to Xiang Yu's army to solve doubts and doubts. Knowing that he may go and never return, he can go to the meeting calmly, which not only shows Liu Bang's flexibility, but also shows his talent and courage. In order to further dispel Xiang Yu's wariness with words, Liu Bang's words at the Hongmen banquet showed his intelligence. "However, if you don't care, you can enter the Qin Dynasty first, so that you can see the general again here. Today, there are little people's words that make the general and the minister get on well. "Liu Bangxian talked about his comrades-in-arms friendship with Xiang Yu, and then talked about his strategic division of labor with Xiang Yu, and then said that he had no intention of making great contributions, but he did not expect to be loyal to Xiang Yu.