"A group of wise men are exhausted, but few people grow salty" comes from the preface to Lanting Collection by Wang Xizhi, a calligrapher in the Eastern Jin Dynasty. This paper describes the scenery of Lanting and the fun of gathering by Wang Xizhi and others, and expresses the author's sigh: if things are not frequent, they will eventually be finished. The author is extremely happy and sad when he is happy and sad. The article also changed from calm to calm, ups and downs, ups and downs with his feelings, so Preface to Lanting Collection became a famous masterpiece.