Cao Cao led an army to pass by the Cao E Monument and saw the words' yellow silk young woman, grandson mortar' engraved on the monument. Cao Cao asked Yang Xiu, "Can you explain it?" Yang Xiu replied, "Yes." Cao Cao said,' Don't say anything yet, let me think about it'. After walking three miles, Cao Cao said,' I know what it means'. Let Yang Xiuxian express his views, and Yang Xiu said: "Yellow silk, colorful silk, the word is" absolutely "; Young woman', girl also, in the word' wonderful'; Grandson', female is also, and the word is' good'; The word' Qiujiu' accepted by Xin Qiji is' Qi', and the so-called' Miao Yan'. " Cao Cao came up with the same idea as Yang Xiu. So I sighed and said,' I'm not as good as it, but I feel thirty miles'.

The story about filial piety to his daughter Cao E is in Ye Fan's "The History of the Later Han Dynasty" in the Southern Dynasties. Biography of Women: "Those who are filial to Cao E will remember the people in Shangyu. Father, you can sing songs for Wu Xian. On May 5, 2002, Han 'an danced against the Tao God by the river in the county town, and drowned, but no body was found. /kloc-when she was 0/4 years old, she cried by the river for a day and a night. Seven days out of ten days, she threw herself into the river. By the first year of Yuanjia, the county was still long, and a monument was erected by the Jiangnan Road. " Later, Li Xian of the Tang Dynasty quoted the record in Huiji: "Shangyu was still a disciple of the Han Dynasty, and the word was a gift. Weak at that time, but gifted. This is the first time that Lang Wei has been made into a monument of Cao E, and this achievement has not been published. I wrote it because I wanted my son to do it. I didn't decide. Lang sighed and destroyed his grass. Later, Cai Yong wrote eight words:' Yellow silk young woman, grandson mortar. In Yuan Dynasty, Guo Jiang's "Throwing himself into the river" was compiled into "Twenty-four Filial Pieties".