What examples have you seen that you have no strength to pretend to be a big head?

After Qi Huangong's death, civil strife broke out in Qi, which led Wei, Cao and Yan to fight against Qi. Qi people were at home and established Qi, so they became famous. Then. He thinks he is great! Song Xianggong met with the princes for the first time in Ludi, and the princes of Qi and Chu got together, and Xiang Gong claimed to be the leader, which caused dissatisfaction with Qi and Chu. Song Xianggong acted on his own initiative, and without the consent of Qi and Chu, he was locked in the jar again in the autumn of that year. Meet the prince. Childe advised him that Song was a small country, which would bring about its own destruction if it wanted to compete for hegemony, but Xiang Gong did not listen. Before he arrived in Yu Di, his son, Mu Yi, suggested that he take the army with him in case of any change. The Chu people didn't keep their promises. Song Xianggong said, "I suggest that I don't bring troops. I have an appointment with the Chu people. How can I break my word? " Therefore, Song Xianggong didn't bring troops to the meeting. Then he got caught. He was imprisoned in the State of Chu, and was released in the second year through the mediation of Lu Xigong. Then there was the "Battle of Hong", resolutely not taking advantage of people's danger, and then he was shot in the thigh and later died.