A. sand? B, stone? C. bamboo slips? D, banana leaves
Correct answer: D.
Huai Su (725-785) was a famous monk in the Tang Dynasty. He became a monk since he was a child, but he always insisted on his hobby of calligraphy. He studied under the famous calligraphy master Yan Zhenqing. But the main achievement of his calligraphy is not regular script, but cursive script, especially weeds. His masterpiece Preface can be described as a model in the history of cursive script. This achievement is the result of his long-term unremitting practice. It is not easy to have such "achievements". Because the monk's job is to serve the Buddha, meditate and recite scriptures, and practice calligraphy, and every minute takes up all the rest time. This, Huai Su completely did it. His perseverance is amazing.