《北史·列传·卷六十九》
孝文帝曾经从容地对人说： 道固既已升至高位，而孙蔚还沉居卑微的地位，朕常常认为有负孙惠蔚。 
孝文曾从容言曰： 道固既登龙门，而孙蔚犹沈涓浍，朕常以为负矣。 
Emperor Xiaowen once said in a leisurely manner: The Way had already been elevated to a high position, yet Sun Wei remains in a humble position, I often feel that I have let Sun Huiniao down.