《论衡·卷五·感虚篇》
神农把木头弄弯做成耒，教百姓种田锄草，百姓才开始以五谷为粮食，五谷才开始播种。
始为耕耘者，何故无变？神农之桡木为耒，教民耕耨，民始食谷，谷始播种。
Shennong bent wood into a plow, and taught the people how to farm the fields and weed, which was the beginning of using grains as food, and which was the beginning of seeding.