《庄子·外篇·田子方》
孔子说： 先生之德与天地匹配，而还借助至道之言以修养心性。
孔子曰： 夫子德配天地，而犹假至言以修心。
Confucius said: A teacher's virtue can compare with Heaven and Earth's, yet still uses the Ultimate Tao's words to cultivate his own mind and nature.