Introduction to Prajna Inscription: "Prajna Inscription" is the oldest existing cliff stone carving in Fuzhou. It was written by Li Yangbing, a famous calligrapher of the Tang Dynasty. Li Yangbing is an uncle of the Li Bai clan. His seal characters are as famous as Li Si of the Qin Dynasty, and he is called "Big and Little Li". The stone carving is 5 meters high, 2 meters wide, in small seal script, with a total of 24 characters and a character diameter of 43 centimeters.