《荀子·哀公》
穿着丧服、撑着孝棍的人不听音乐，并不是耳朵不能听见，而是身穿丧服使他们这样的。
资衰苴杖者不听乐，非耳不能闻也，服使然也。
People wearing mourning clothes and leaning on a stick of filial piety do not listen to music, not because their ears cannot hear, but because wearing mourning clothes makes them do so.