《资治通鉴·唐纪·唐纪五十七》
右拾遗李珏等人上疏，认为： 茶叶专卖始于贞元年间朝廷多难的时期，现在，天下太平，应当减少横征暴敛的赋税数量，却反而增加，那么，百姓什么时候才能减轻负担呢？ 
右拾遗李珏等上疏，以为 榷茶近起贞元多事之际，今天下无虞，所宜宽横敛之目，而更增之，百姓何时当得息肩！ 
Right Remonstrant Li Jue and others jointly submitted a memorial, stating: The tea monopoly was started during the Zhenyuan reign when the dynasty was facing hardships, now that the world is at peace, the tyrannical and excessive taxes should be reduced, yet instead the amount of tea has increased, so when will the people ever have a chance to recover? 