hide one 's candle under a bushel
Chinese idiom, Pinyin is B ù L ù f ē NGM á ng, which means to show no vigor or talent. It refers to deliberately covering up one's talent, ambition, etc. It comes from MengXiBiTan · bubitan.
The origin of Idioms
Shen Kuo's Mengxi Bi Tan · Bu Bi Tan in Song Dynasty: "Kou Zhun can judge major events, regardless of minor points; he has a strong hand, but does not show his edge."
Analysis of Idioms
The synonym is hidden; the antonym is sharp
Idiom usage
The verb object type is used as the predicate; the metaphor does not show intelligence
hide one 's candle under a bushel
be good at deliberating and judging - néng móu shàn duàn