Two quatrains by the Tang poet
李绅. The first,
春种一粒粟,
秋收万颗子, ends with farmers starving in a land where no field lies idle. The second is the one every child learns, and parents quote it to get children to finish their rice:
锄禾日当午,
汗滴禾下土。
谁知盘中餐,
粒粒皆辛苦 'Hoeing the grain at noon, sweat drips onto the soil. Who knows that every grain in the bowl was won by toil?'