《明史·列传·卷一百零八》
如果漕运五万石到密云，而将本镇所折算的三万五千两白银留给京城的部队，则通州的仓库中不会有粟腐烂，京城的军队获得了实惠，密云免去召商之事，这是一举三得的好事啊！ 
若漕五万石于密云，而以本镇折色三万五千两留给京军，则通仓无腐粟，京军沾实惠，密云免佥商，一举而三善备矣。 
If 50,000 shi were transported to Miyun by漕运 and the 35,000 taels of silver that the town has converted were left to the troops in Beijing, then there would be no millet rotted in the Tongzhou warehouse. The troops in Beijing would benefit, and Miyun would be relieved of the business matters. This is a good thing that kills three birds with one stone!