The third line of the first of
李绅's two 《
悯农》 poems:
春种一粒粟，
秋收万颗子。
四海无闲田，
农夫犹饿死。 'In spring one grain of millet is sown; in autumn ten thousand are reaped. Not a field in the land lies idle, yet the farmers still starve.'
四海, 'the four seas', means the whole country.
