《荀子·子道》
子路问孔子说： 这里有个人，早起晚睡，耕地锄草栽植播种，手脚都磨出了老茧，以此来赡养自己的父母，却没有孝顺的名声，为什么呢？ 
子路问于孔子曰： 有人于此，夙兴夜寐，耕耘树艺，手足胼胝，以养其亲，然而无孝之名，何也？ 
Zi Lu asked Confucius, “There is someone who gets up early and goes to bed late, tills the fields, removes weeds, and plants seeds, and whose hands and feet are covered with calluses from providing for his parents. Yet he does not have a reputation for filial piety. Why is that?”