《资治通鉴·唐纪·唐纪十一》
自从大唐美善兴旺，已有十多年了，然而德化的成效不尽人意，是因为君王对待臣下未尽诚信的缘故。
自王道休明，十有馀年，然而德化未洽者，由待下之情未尽诚信故也。
It has been more than 10 years since the great Tang flourished, however, the influences of morality and education have not yet fully reached the people, because the emperor has not treated his ministers with full sincerity.