chīㄑㄧㄢˋqiànㄓㄤˇzhǎngˋzhì

  1. 壕溝比喻困難挫折吃一塹,長一智挫折得到教訓增長一分才智做事不要失敗所謂吃一塹,長一智只要澈底反省可貴經驗。」

Fall into the moat and you'll be wiser next time (idiom)​; One only learns from one's mistakes.