1. The Four Treasures of the Study refers to: pen (Hubi), ink (Huimo), paper (Xuan paper), and inkstone (She Yan).
2. The four good friends of elegant people are also called the four friends of literati. They refer to playing the piano, playing chess, calligraphy and painting. They are the skills that literati and poets must master, and they also include some skills that ladies from famous families must master for self-cultivation. Therefore, they are collectively called qin. Chess, calligraphy and painting. Playing the qin mostly refers to playing the guqin, and playing chess mostly refers to Go and Chinese chess.
3. Qin: flute, erhu, guzheng, Xiao, drum, guqin, pipa, "Jasmine". Chess: Chinese chess, Chinese Go, games, chess pieces, chess boards, etc. Books (calligraphy, seal cutting) Chinese calligraphy, seal cutting, four treasures of the study (brush, ink, inkstone, rice paper), woodblock watermarks, oracle bone inscriptions, bells and tripods, Han Dynasty bamboo slips, vertical wire-bound books, Chinese characters, etc.