《资治通鉴·后唐纪·后唐纪八》
杨洞潜从宫廷出来，看见卫兵抢掠商人的财物，商人都不敢投诉，杨洞潜叹息说： 政事如此混乱，还要宰相有什么用！ 
洞潜出，见卫士掠商人金帛，商人不敢诉，汉曰： 政乱如此，安用宰相！ 
Yang Dongqian sighed after leaving the palace. He saw the guards plundering the property of the merchants, but the merchants did not dare to complain. He said: If politics are so chaotic, then what use is there for the prime minister!