《新唐书·列传·卷二十》
秦代李冰疏导汶江之水灌溉田地，沿渠之地每顷价值千金，富强之家多相侵夺。
秦时李冰导汶江水灌田，濒水者顷千金，民相侵冒。
In the Qin dynasty, Li Bing diverted the water from the Wen River to irrigate farmland, and each hectare of land along the canal was worth a thousand gold, so the wealthy and powerful often invaded each other.