Why Most of the Emperors Were Industrial in Qing Dynasty

There were twelve emperors of the Qing Dynasty,except Tongzhi in the late Qing Dynasty and young Xuantong didn't have great influence,the rest of the emperors were more diligent in political affairs,also had outstanding achievements.Es-pecially from Nurhachi,Huang Taiji to Kangxi,Yongzheng and Qianlong,all the six emperors have rare gifts and bold strategy and have been called wise king.Investigated the reason,it has important relations with strict royal education,the unique system of throne inheritance and internal disturbance and foreign aggression in Qing Dynasty.