《吕氏春秋·纪·季冬纪》
介子推回答说。 那介子推如果不想出仕而想要隐居，我怎么会单单知道他? 
应之曰： 夫介子推苟不欲见而欲隐，吾独焉知之？ 
Jie Zitui replied. If Jie Zitui did not want to serve as an official but wanted to live in seclusion, how would I know him alone?