《战国策·秦四·薛公入魏而出齐女》
韩春对秦王说： 为什么不娶齐女为妻，以此使齐、秦联合起来去威逼魏国，那么魏国的上党就将被秦国占有。
韩春谓秦王曰： 何不取为妻，以齐、秦劫魏，则上党，秦之有也。
Han Chun said to the King of Qin: Why not marry the daughter of Qi as his wife, so as to unite Qi and Qin to coerce the state of Wei, then the Shangdang of the state of Wei will be occupied by the state of Qin.