《明史·志·卷五十四》
当时富豪之人多阻止其提议，只有顾鼎臣认为好，说： 这个税法一实行，我家增加一千石税，然而贫民却减轻一千石了，不能改动。 
时豪右多梗其议，鼎臣独以为善，曰： 是法行，吾家益千石输，然贫民减千石矣，不可易也。 
At that time, many wealthy people opposed his proposal, but only Gu Dingchen thought it was good, saying: "Once this tax law is implemented, my family will pay an additional 1,000 shi of tax, but the poor will be relieved of 1,000 shi of tax, so it cannot be changed."