君くん子しは豹ひょう変へんす

expression, suru verb (precursor)

a wise man changes his mind, a fool never; the wise adapt to changed circumstances

Original classical meaning from the I Ching: a superior person corrects mistakes quickly. Used as a proverb to praise flexibility and self-improvement.

See also: 君子豹変 (くんしひょうへん)

• 「君くん子しは豹ひょう変へんす」という言こと葉ばは、過あやまちをすぐに改あらためることの大たい切せつさを教おしえている。

  The saying 'a wise man changes his mind, a fool never' teaches the importance of quickly correcting one's mistakes.

expression, suru verb (precursor)

the wise make no scruple in suddenly changing their demeanor

Modern colloquial reinterpretation, often used to describe someone who abruptly changes attitude or behavior, sometimes with a negative or sarcastic tone. The original positive nuance is often lost.

• 彼かれは昨日きのうまで反はん対たいしていたのに、今日きょうは急きゅうに賛さん成せいし始はじめた。まさに君くん子しは豹ひょう変へんすだね。

  He was against it until yesterday, but today he suddenly started supporting it. Talk about changing your tune.