《列子·杨朱》
管仲说： 耳朵想听什么就听什么，眼睛想看什么就看什么，鼻子想闻什么就闻什么，嘴巴想说什么就说什么，身体想怎么舒服就怎么舒服，意念想干什么就干什么。
晏平仲曰： 其目奈何？ 夷吾曰： 恣耳之所欲听，恣目之所欲视，恣鼻之所欲向，恣口之所欲言，恣体之所欲安，恣意之所欲行。
Guan Zhong said: The ears listen to whatever they want to hear, the eyes see whatever they want to see, the nose smells whatever it wants to smell, the mouth speaks whatever it wants to say, the body does whatever it wants to feel comfortable, and the mind does whatever it wants to do.