Survives in one set phrase:
惩前毖后 ('punish past errors to take precautions for the future'). The source is
《诗经·周颂·小毖》:
予其惩而毖后患 — the young king Cheng's vow to learn from the rebellion of the Three Guards. Mao Zedong revived the four-character form in 1942 as a Party formula for handling internal errors.