Handwriting introduction: The monument "Siwuxie·Gongshengming" is 2.39 meters high and 0.96 meters wide, and the upper right corner is incomplete. It can be seen from the inscription that the text on this stele was written by Sima Guang and carved on stone in the first year of Chunyou (1241) in the Southern Song Dynasty. The phrase "thinking without evil" comes from the second chapter of "The Analects of Confucius" in the chapter "For Politics". When translated into today's text, Confucius said: "There are three hundred chapters in the Book of Songs. To sum up its spirit in one sentence, it can be said: 'So "There are no evil thoughts in your thoughts." "Gongsheng Ming" comes from Xunzi's "Bu Gou", which means "Justice makes you discerning, partiality makes you stupid." Some people call these six words "the guide of the world."