惩前毖后

Explanation: Correctional Services: alert; Mi: caution. Refers to the mistakes of previous criticism, learn to make the future more carefully, will not be repeated. 　　Usage: -Linked; as predicate, object, attribute; that lesson after careful 　　Source: "Little Book of First Instance Zhou Mi": "to punish and Mi its troubles." 　　Examples: Premier Tang ~, when this task do not wish to implement, but Xukuan haste, without it really bite the bullet and went out to do business. (Caidong Fan, Xu hut Father "Romance of the Republic of the popular" X back) Thesaurus:  Xiaochengtaijie, carry out vigorously and speedily, Order Line ban, Justice, legality pursue, dispense the law without bias, will be mercilessly punished, a stumble may prevent a fall, The law shall be enforced to the letter upon its promulgation, enforce laws impartially