On the way to cross your toes, write to warn them: "I hope you have heard of other people's mistakes, just like hearing your parents' names: you can listen with your ears, but you can't say it with your mouth." "I would rather die than my children and grandchildren talk about other people's strengths and comment on the court's laws. Du didn't know until now that all the generals in the county gnashed their teeth and hated him when they arrived, and people outside the county had great opinions on him. I often think he is cold, which is why I don't want my children and grandchildren to learn from him. "
The Book of Commandments of Brother Yan Dun tells that Ma Yuan heard that his brothers (nephews) Ma Yan and Ma Dun praised others and commented on right and wrong, so he wrote this letter to encourage them. In the letter, he taught Yan Hedun not to say other people's faults, which was the most annoying thing in his life. He didn't want the younger generation to form this habit. I also explained that the purpose of Wan Li's book writing was to hope that they would remember their usual teachings and not comment on them.
Ma Yuan, a native of Wenyuan, comes from Maoling County, Fufeng County. China was a general from the late Western Han Dynasty to the early Eastern Han Dynasty, a founding hero of the Eastern Han Dynasty and the father of Emperor Han Ming. His main works are Wu, Yan Dun, Disciples' Rules and Rules of Bronze Horse.