《左传·昭公·昭公三年》
当时，齐景公滥用刑罚，有出卖假腿的，所以晏子回答说： 卖受刖刑之人穿的鞋子很贵，普通草鞋便宜。 
于是景公繁于刑，有鬻踊者。故对曰： 踊贵屦贱。 
At that time, Duke Jing was harsh in implementing criminal laws. Some people were selling artificial legs. So Yan Zi replied, "Shoes for the crippled are expensive, while normal straw sandals are cheap."