A proverb from the Analects: when you make a mistake, do not hesitate to correct it; admonishes immediate repentance and correction.
師は生徒に対して『過ちては則ち改むるに憚ること勿れ』と言って、失敗を恐れず学ぶよう励ました。
The teacher told the students, 'When you err, do not hesitate to correct it,' encouraging them to learn without fear of failure.
この言葉は公私にわたって誠実に行動するための指針として引用されることが多い。
This saying is often quoted as a guideline for acting honestly in both public and private life.