The Book of Jin, A Good Official Deng Youchuan, describes Deng You's modest personality, good at communicating with people and treating guests equally. This description expresses his moral characteristics. In this document, the word "simplicity" refers to simplicity, innocence and truth, and is used to describe a person's honest and frank inner character. "Modesty and simplicity" can be understood as treating others modestly and kindly, showing a pure and true attitude and behavior.