《资治通鉴·唐纪·唐纪四十五》
这大概是因为人们各自做自己要做的事情，必然会有过错，由上智到下愚，都不能避免。明智的人能够改正过错而移心向善，愚蠢的人耻于改正过错的而因循前非。移心向善，人的德行便会日日更新；因循前非，人的坏处就会越积越多。 
盖为人之行己，必有过差，上智下愚，俱所不免，智者改过而迁善，愚者耻过而遂非；迁善则其德日新，遂非则其恶弥积。 
This is probably because people have to do their own things and will inevitably make mistakes, from the wise to the foolish, no one can avoid it. The wise can correct their mistakes and move their hearts to goodness, while the foolish are ashamed to correct their mistakes and follow their past mistakes. Moving one's heart to good will make one's virtue renew day by day; persisting in the past mistakes will accumulate more and more bad habits.