Su Shi painted cows in Liu Bingxin: There was Liu Bingxin in the middle of Henan, who was good at painting cows and drew thousands of them. Buffalo pictures 100, particularly good, many people collect. They are inlaid with jade shafts and mahogany frames. Hang a reward! After a collector saw it, Zhang Daxi said, "This buffalo painting is great! Vivid and lifelike. Is Dai Song's "Bullfighting Map" and Li Keran's "Grazing Cattle Map" wonderful! " In terms of the praise of marginal friends, the old saying goes: "Travel thousands of miles, read thousands of books, and look for Qifeng to contribute!" Bing Xin drew a cow and sketched it, but it was wonderful!