《左传·文公·文公十八年》
这个莒仆，如果取法他的孝敬吧，那么他是杀了国君父亲的；取法他的忠信吧，那么他是偷窃了宝玉的。
夫莒仆，则其孝敬，则弑君父矣，则其忠信，则窃宝玉矣。
This Ju servant, if he follows the example of his filial piety, then he killed the monarch's father; if he follows the example of his loyalty and trustworthiness, then he stole the jade.