《史记·七十列传·鲁仲连邹阳列传》
从前卞和进献宝玉，楚王砍掉他的脚；李斯竭尽忠诚，胡亥却把他处以极刑。
昔卞和献宝，楚王刖之；李斯竭忠，胡亥极刑。
In the past, Bian He offered a piece of jade to the King of Chu, and the King of Chu cut off his foot. Li Si devoted his loyalty, but Hu Hai executed him.