《金史·列传·卷四十五》
过去唐朝分开河朔的土地来给那些叛将，史官们认为这是保护和养育孽根使之萌长而成大祸，这事应当成为今日的大戒。
昔唐分河朔地授诸叛将，史臣谓其护养孽萌以成其祸，此可为今日大戒也。
In the past, the Tang Dynasty had given the Hebei land to the rebel generals, and the historians believed that this was a case of protecting and fostering a disaster to let it grow and become a big calamity; this should serve as a warning to us today.