From Li Shen
李绅's 《
悯农》 (Tang):
锄禾日当午,汗滴禾下土。谁知盘中餐,粒粒皆辛苦。 (Hoeing rice under the noon sun, sweat drips on the soil beneath the plants; who realises that every grain in the bowl is the fruit of bitter toil?) Ubiquitous in Chinese primary-school ethics lessons on not wasting food.