About the author: Cao Xiuxian (1708 ~ 1784), the word Heng Ting, also the word Zhitian, Bingzhi, no. Dishan, Jiangxi Nanchang Xinjian County people. Han Lin of the Qing Dynasty, politician, writer, calligrapher. For the official integrity, it is called "sincerity, diligence and prudence". As the president of the "Four Libraries and Complete Books", the Qianlong Emperor once gave special treatment to the "Forbidden City Horseback Riding". Calligraphy, taking the fa bell and the king, is a family of its own.

Knowledge: Dishan Cao Xiuxian.
Seal: Hidehito Jiyama, Emperor Daizong, Ren Yin, Seventy-Five, Reading Hall