Yang Xi
Although no autograph copies of Yang Xi's famous calligraphy have survived, one well-documented stone rubbing version of the revealed "Huangting jing" (黃庭經, Yellow Court Scripture) has been given special attention. The Song dynasty connoisseur and critic Mi Fu (1051-1107) analyzed four manuscripts of the "Huangting jing", and said the best one was written on a silk scroll with a provenance that he traced back to the early 8th century. Mi disagreed with a former owner Tao Gu (陶穀, 903-970) who said that Wang Xizhi wrote the manuscript, and concluded it was a superb example of calligraphy from the Six Dynasties period. The Ming dynasty calligrapher and painter Dong Qichang (1555-1636) was so impressed by the Mi Fu manuscript that he made a copy, recommend it as the best model for studying "kaishu" script, and included it as the first example in his classic "Xihong tang fatie" (戲鴻堂法帖, Calligraphy Compendium of the Hall of the Playful Goose). Dong's colophon attributed the calligraphy to Yang Xi himself and described it as "the traces of a holy immortal" (Ledderose 1984: 262-263, who calls Dong's attribution to Yang "extremely optimistic").
Four arts
Ancient weiqi texts are prized among modern Chinese weiqi professionals, as seen below in the translation of an ancient strategy book:
Shu 書 refers to Chinese calligraphy, which dates to the origins of recorded Chinese history, in essence ever since written characters have existed. Chinese calligraphy is said to be an expression of a practitioner's poetic nature, as well as a significant test of manual dexterity. Chinese calligraphy has evolved for thousands of years, and its state of flux stopped only when Chinese characters were unified across the empire. Chinese calligraphy differs from western calligraphic script in the sense that it was done with a brush instead of metal implements or a quill. Calligraphy was the art by which a scholar could compose his thoughts to be immortalized. It was the scholar's means of creating expressive poetry and sharing his or her own learnedness.