Source: "Shangshu Dayu Mo": "Many times bring harm, modesty benefits, it is the way of heaven."
"Ancient and Modern Wise Essays·Truth Chapter"
"If you are full of losses, modesty will benefit" are two sentences in "Shangshu", which teach people to cultivate their moral character.
The original sentence of "full of losses, modesty will benefit," is "full of losses, modesty will benefit." Modesty benefits." Later, it was quoted by Ouyang Xiu in "New History of the Five Dynasties: Preface to the Biography of Lingguan".