Traduction :
lit. to punish a little to prevent a lot (idiom); to criticize former mistakes firmly to prevent large scale repetition
Référence :
惩：惩罚；诫：警告，劝告。有小过失就惩戒，使受到教训而不致犯大错误。
Origine :
《周易·系辞下》：“小惩而大诫，此小人之福也。”
Exemple :
悖入非无悖出时，临歧知悔已嫌迟。～由来说，到底贪官不可为。（蔡东藩、许廑父《民国通俗演义》第七一回）
Annotation :
小惩大诫1
1. xiǎochéngdàjiè :
[EN] lit. to punish a little to prevent a lot (idiom); to criticize former mistakes firmly to prevent large scale repetition
