《宋史·列传·卷一百五十七》
淳熙三年，朝中大臣上奏： 四川每年买军粮，名为和籴，实际是科籴，成了老百姓固定的负担。 皇上下诏让制置使范成大和李蘩一起计算一下上奏给朝廷，李蘩上奏说： 各州每年买粮食六十万石，如果按官府买粮的价钱算，一年大约用钱一百万缗，如果在经费中斟酌一下应减少和增加的项目，就能使科籴转变为官籴。粮食价格的贵贱要看年景，不使老百姓吃亏，粮食调出和收入要看数量，不要索取蝇头小利。这样就会军队兴盛，老百姓不增加赋税。 李蘩就写了 对百姓有利的十一件事 上奏给朝廷。
淳熙三年，廷臣上言： 四川岁籴军粮，名为和籴，实科籴也。 诏制置使范成大同蘩相度以闻，蘩奏： 诸州岁籴六十万石，若从官籴，岁约百万缗，如于经费之中斟酌损益，变科籴为官籴，贵贱眂时，不使亏毫忽之价；出纳眂量，勿务取圭撮之赢，则军不乏兴，民不加赋。 乃书 利民十一事 上之。
In the third year of the Chunxi era, the imperial ministers submitted a memorial stating: Sichuan purchases military grain each year, which is nominally a negotiated purchase but actually a forced purchase, and has become a fixed burden on the common people. The emperor issued an imperial edict ordering the pacification envoy, Fan Chengda, and Li Fan to calculate and present a memorial to the court, and Li Fan reported: Each prefecture purchases 600,000 shi of grain each year, and if calculated at the price of grain purchased by the government offices, it requires approximately 1 million guan per year. If the items that should be reduced and increased in the budget are meticulously assessed, then the forced purchase can be transformed into an official purchase. The high and low prices of grain depend on the harvest, so that the common people do not suffer losses, and the amount of grain dispatched and imported should be checked to avoid quibbling over small profits. In this way, the military will flourish and the common people will not see an increase in taxes. Li Fan then wrote an Eleven Benefits for the People memorial and submitted it to the court.