《汉书·纪·文帝纪》
努力耕作，是最重要的生活根本。三老，是人民的老师，廉吏，是人民的表率。
朕甚嘉此二三大夫之行。
Diligent farming is the most important foundation for life. Elderly officials are the people's teachers, and honest officials are the people's role models.