《韩非子·和氏》
文王听说后，派人去了解他哭的原因，问道： 天下受断足刑的人多了，你为什么哭得这么悲伤？ 
王闻之，使人问其故，曰： 天下之刖者多矣，子奚哭之悲也？ 和曰： 吾非悲刖也，悲夫宝玉而题之以石，贞士而名之以诳，此吾所以悲也。 王乃使玉人理其璞而得宝焉，遂命曰： 和氏之璧。 
Having heard about this, King Wen sent someone to understand the reason for his crying, and asked: Many people in the world have had their feet cut off; why are you crying so sorrowfully?