《新五代史·列传·杂传第四十二》
冯道曾告诫唐明宗说： 我任河东掌书记时，奉命出使中山，经遇险要的井陉时，怕马绊倒，不敢放松马勒和缰绳，到平地后，以为不必担心，却突然跌倒受伤。
道尝戒明宗曰： 臣为河东掌书记时，奉使中山，过井陉之险，惧马蹶失，不敢怠于衔辔；及至平地，谓无足虑，遽跌而伤。
Feng Dao once warned the Mingzong Emperor of Tang, "When I was Keeper of Records of Hedong, I was ordered to go on an assignment to Zhongshan. When I reached the strategic Jingxing Pass, I was afraid that my horse would trip, so I held on tightly to the reins. After reaching flat ground, I thought I had no reason to be worried but fell and injured myself.