《宋史·列传·卷一百一十五》
张根生性至孝，父亲有虫病要戒盐，张根因此吃淡味。母亲爱吃河豚及螃蟹，母亲去世后，张根不再吃。母亲害病时，每到鸡叫时就苏醒了，张根后来不忍听到鸡叫。任谅字子谅，眉山人，徙居汝阳。九岁丧父，其舅打算逼其母改嫁，谅挽衣哭道 ：哪里有为人之子不能养食自己的亲人呢？ 母亲为之感动而作罢。
九岁而孤，舅欲夺母志，谅挽衣泣曰： 岂有为人子不能养其亲者乎！ 母为感动而止。
Zhang Gen was extremely filial by nature. When his father had worms and had to eat a salt-free diet, Zhang Gen ate bland food. His mother liked to eat blowfish and crabs. After his mother died, Zhang Gen no longer ate them. When his mother was ill, she used to wake up whenever she heard the cock crow. After that Zhang Gen found it too painful to hear the cock crow. Ren Liang, whose courtesy name was Ziliang, was from Meishan but had moved to live in Ruyang. His father died when he was nine, and his maternal uncle wanted to force his mother to remarry. Liang threw himself on the ground weeping and said: "How could a man not feed his own parent?" His mother was moved by this and gave up the idea.