《明史·本纪·卷三》
晚年更加忧民，曾以一年的时间开挖支河数万处河渠塘堰，以利农桑，预防旱灾。
晚岁忧民益切，尝以一岁开支河暨塘堰数万以利农桑、备旱潦。
In his later years, he was even more concerned about the people's well-being. He once spent a year opening up tens of thousands of branch rivers and canals and building ponds to promote agriculture, sericulture, and prevent drought.