《资治通鉴·宋纪·宋纪六》
拓跋焘对陆俟说： 关中接受我们的教化还没有多长时间，我们的恩德信誉还没有树立起来，因此，那里的官吏和老百姓几次发动叛乱。
谓俟曰： 关中奉化日浅，恩信未洽，吏民数为逆乱。
Tuoba Tao said to Lu Si: The Guanzhong have not been under our education for long enough that the impact and reputation of our virtue has been established. As such, the officials and civilians there have rebelled multiple times.