前事不忘，后事之师 (前事不忘，後事之師) qiánshì bù wàng, hòushì zhī shī

qiánshì bù wàng, hòushì zhī shī phrase don't forget past events, they can guide you in future; benefit from past experience
Domain: Proverb 谚语
Notes: (CC-CEDICT '前事不忘，後事之師')