睿 | ruì | astute / perspicacious / farsighted | |
明眼人 | míng yǎn rén | perspicacious person / sb with a discerning eye / sighted person (as opposed to blind) | |
明镜高悬 | míng jìng gāo xuán | perspicacious and impartial in judgment (idiom) | |
博识多通 | bó shí duō tōng | knowledgeable and perspicacious (idiom) |