Liu Lianyungang, intoxicated by the art of stone carving, felt shocking. Later, I looked at the travel history of Japanese Muxia Jietaro written 100 years ago, and he resonated with him, and recommended the book to friends. If there is no previous repeated smear repair and printing stripping, if there is no destruction of the aggressor and the destruction of the life of the aboriginal people, the inscription of the visitors... What a stunning masterpiece is Yungang today!