元 李衎 竹石圖 對軸, Bamboo and rocks, Yuan dynasty (1271?1368), dated 1318, China, Pair of hanging scrolls; ink and color on silk, Image (each) : 74 3/4 x 21 3/4 in. (189. 9 x 55. 2 cm), Paintings, Li Kan (Chinese, 1245?1320), Li Kan was a northern Chinese who entered the service of the Mongol government at an early period and rose to a high position in the Yuan court. The author of an authoritative treatise on bamboo painting, Li stated that the painter must possess 'the complete bamboo in [his] breast, ' and he urged statesmen to take up bamboo painting to discipline their minds and expand their breadth of vision