《公孙龙子·迹府》
 您既然信奉的是宗师仲尼的儒家学说，反而诽议仲尼所采取的理论宗旨；既又想跟我学习却又叫我放弃我的理论宗旨。这样，即使有比我贤能百倍的人，亦绝对没有办法能来当您的导师呵！ 
 先生修儒术而非仲尼之所取，欲学而使龙去所教，则虽百龙，固不能当前矣。 
Since you believe in the Confucian teachings of Master Zhongni, you slander the theoretical principles that Zhongni adopted; you want to study with me but also ask me to abandon my theoretical principles. Like this, even if there were someone a hundred times wiser than me, there would be absolutely no way they could be your teacher!