"Old bean" should be "old sinus". This is a story quoted by a man who lived under the same roof for five generations. He taught his son well, and then his fifth son graduated from this subject to show his great respect for his father.

Looking through the old three-character classics, there is a passage: "Dou Yanshan has a righteous side and teaches five sons, which is famous all over the world."

Dou Yanshan, surnamed Dou Mingyujun, was born in, and the official residence is Doctor You Jian. Dou is clean and honest, and does his duty. To build a school, a famous Confucian was invited to teach the poor, especially the children. After his careful training, his five sons (Chang Yi, Ci Yan, San Kan, Si Yong and Wu Nuo) have all become the "five dragons" of the Dou family. After the Ming and Qing dynasties, the three-character classic, a compulsory reading textbook for children's enlightenment, came out. Since then, the allusions in the book have spread widely.

So Dou Yanshan became a "model father" admired by the world, and people often called this "father" who taught his children well "Old Dou".

Extended data:

Five sons of Dou Yanshan:

1. The eldest son, Dou Yi, is a scholar, awarded a bachelor's degree in Hanlin, and served as the minister of rites. He is mainly responsible for the national imperial examination, sacrificial ceremonies, foreign affairs and etiquette formulation of unprecedented ceremonies.

2. The second son, Dou Weixiucai, was awarded a bachelor's degree in Hanlin and served as an assistant minister in the Ministry of Rites. He was mainly responsible for managing specific affairs such as the Ministry of Rites, master of ceremonies, imperial examinations and schools.

The third son, Dou Kan, was ordered to fill the vacancy, and his main duty was to advise the emperor.

4. The fourth son, Dou Zhuo, is a bachelor of Hanlin and a doctor. His main duty is to give advice to the emperor.

5. The fifth son, Dou Xuan, was appointed as Huolang. He was originally a historian. His main duty is to record the emperor's words and deeds, and he was named after "raising a note".

At one time, the Dou Shi family was brilliant, and the time number was "Dou Shi Five Dragons". Dou Yanshan's godson "Yi Jia Fa" has become an example for everyone to learn. Feng Dao, who worked as an adjutant under Liu Shouguang in Da 'anshan and later as a general in the Five Dynasties, once wrote a poem praising Dou Yanshan's godson, saying, "Dou Yanshan has a good godson. Lingchun is an old tree, and Dangui has five branches. "

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