《明史·列传·卷一百八十六》
曾对人讲《论语？乡党》时说： 我教学中自有养生之术，何必去仰卧、呼吸新鲜空气，吐出污浊之气。 
尝揭《论语乡党》篇示人曰： 吾教自有养生术，安事偃仰吐纳为。 
He once said to someone who told him about Analects of Confucius, Township Party: I have my own way to cultivate life in my teaching. Why do I need to lie down, breathe fresh air, and exhale foul air?