 Gao Cheng was not as respectful to Emperor Xiaojing as Gao Huan was, and he ordered Cui Jishu to intensify his surveillance of Emperor Xiaojing.On one occasion, when Gao Cheng was attending a feast, he flashed a cup before Emperor Xiaojing as a toast – a very disrespectful gesture, as a subordinate, when toasting the emperor, was supposed to kneel.Emperor Xiaojing became angry, and remarked, "There is no such thing as an everlasting empire.