Author: Su Shi 蘇軾 (1036-1101) Note: The National Palace Museum suspects that it is a later imitation, stating "The composition in this handscroll is orderly, but the brush force slightly weak, suggesting it may be a later imitation. Nonetheless, the characters are full and the structure firmly compact. Characters also slant to the side and feature heavy vertical strokes contrasting with light horizontal ones, all revealing features of Su's manner. Though a later copy, it faithfully preserves the idea and characteristics of Su's calligraphy style, making it a masterpiece among later imitations."Source: commons.wikimedia.org
