Ashamed of himself, Ji Bu struck up a conversation with Cao about things past and present. Ji Bu discovered that Cao was very good with people. Later, with Cao Qiusheng spreading good words about Ji Bu, his reputation grew even greater and "a promise worth more than 1000 ounces of gold" became a commonly used idiom.
6. 季布頓覺慚愧，隨後與曹丘生論古道今，發現曹丘生是位擅長交際的人，後在曹丘生傳揚下，季布的名聲越來越大，「一諾千金」的成語，便由此來。