《宋史·列传·卷一百四十五》
王刚中升为中书舍人，他对皇上说 ：抵御外敌入侵是当今首要的任务，敌人强大就会侵犯我国的边境，敌人弱小时就会请求与我国结盟。
迁中书舍人，言： 御敌今日先务，敌强则犯边，弱则请盟。
When Wang Gangzhong was promoted to the position of imperial secretary, he said to the Emperor: “Resisting foreign invaders is the most important task facing us today. When the enemy is strong, they will invade our borders; when the enemy is weak, they will send envoys to ask for an alliance with us.”