During the Period of Wei ,Jin and Southern and Northern Dynasties,one war followed another and dynasties replaced each other .However,it was quite prosperous in the cultural field where ideologies and philosophies manifest themselves in a competitive way,which formed the unique Weijin Strength of Character in the history of chinese esthetics.The calligraphy of the later part of the Period of Wei ,Jin and Southern and Northern Dynasties provided the normative rules for calligraphy and aesthetics enlightments for the oncoming 隋、唐、宋、元、明、清等朝代(这里,你自己翻译一下).Extremely far reaching was the effect of the art aesthetics of the part of this Period.