《史记·三十世家·魏世家》
秦国的叶阳、昆阳与魏国的舞阳相邻，听任使臣毁谤安陵氏，听任安陵氏被灭亡，秦军就会绕过舞阳北边，从东边逼近许国故地，这样南方一定危急，这对魏国无害吗？
秦叶阳、昆阳与舞阳邻，听使者之恶之，随安陵氏而亡之，绕舞阳之北，以东临许，南国必危，国无害乎？
Qin's Yeyang and Kunyang were adjacent to Wei's Wuyang. If the envoy was allowed to slander Anling and Anling was allowed to be destroyed, the Qin army would bypass the north side of Wuyang and approach the old site of Xu from the east, then the south would definitely be in danger. Would this have no harm to Wei?