still waters run deep
平静的水流深邃
书面·形容人深藏不露
英文释义
someone who may seem quiet or reserved actually has a strong or complex personality or deep thoughts/feelings.
例句
He doesn't talk much at parties, but still waters run deep—he's a brilliant philosopher.
典故来源
源自拉丁语谚语，形容表面平静的水流下隐藏着深邃的力量，比喻沉默寡言的人内心丰富或深藏不露。