《旧唐书·列传·卷二十一》
诚、信建立，处在下位的人就不会有二心；德礼具备，远方的人就会前来朝贡。
诚信立则下无二心，德礼形则远人斯格。
Since sincerity and trustworthiness are established, those in the lower position will have no second thoughts; with virtue and etiquette, people from afar will come to pay tribute.