Debater Cao Qiusheng is a native of Chu and pays attention to money. Zhao, a noble man, is an equal with Dou Changjun. When Lu Bu heard this, he sent a letter to persuade Dou Changjun, saying, "I heard that Cao Qiu is not an elder, so don't associate with him." And Cao Qiusheng is back. If you want a book, please ask Jibu. Dou Changjun said, "General Ji doesn't talk about the first step, and there is nowhere to step." Please apply for a book and do it. Make people send books first, Ji Bu was furious and waited for Cao Qiu. When Cao Qiudao arrived, he bowed to Lu Bu and said, "As the Chu people said,' It is better to get a hundred catties of gold than a promise'. Why did you get such a scolding from Liang Chu? The servant Chu people, the first step is also Chu people. Servants walk in the name of the first step in the world, regardless of evil? How deep is the distance from the servant! " Gibneda said, bring it in, stay for a few months, and give it to the guests. Ji Bu is so famous, so is Cao Qiuyang.

In the early years of the Han Dynasty, there was a man named Lu Bu. He is ready to help others and keeps his promise. He will try to do whatever he promises, so he is famous. At that time, there was a Chu man named Cao Qiusheng, who made friends with powerful people with his property to raise his social status. When he heard that Lu Bu had become a high official, he asked Dou Changjun to introduce him to Lu Bu. But Dou Changjun told Cao Qiusheng that Jibu didn't like him and advised him not to go. Dou Changjun reluctantly agreed. Cao Qiusheng took the letter of introduction and immediately went to visit Jibu. When he met Ji Bu, he bowed deeply and said, "There is a saying in the Chu people:' A hundred catties of gold is worth a promise. "I helped you spread your reputation in Liang and Chu. Everyone is divorced from Chu. Why do you always refuse to see me? As a courtesy to the distinguished guests, Cao Qiusheng stayed for several months before leaving. When he left, Lu Bu also gave him a generous gift. Cao Qiusheng continued to promote Lu Bu, and Lu Bu became more and more famous. Later, the idiom "a promise as good as a thousand dollars" evolved from here to describe keeping one's word and keeping one's promise.