知人知面不知心 [－－－－－－－]

Jyutping zi1 jan4 zi1 min6 bat1 zi1 sam1
Pinyin zhī rén zhī miàn bù zhī xīn

Definitions (CC-CEDICT)
  1. one may know a person for a long time without understanding his true nature (idiom)
Definitions (Wiktionary)
  1. proverb
    one may know a person from the outside but may not understanding their true nature
    (syn.) 人心隔肚皮, 知人知面勿知心, 知人口面不知心
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）
Examples (Wiktionary)
  1. Mandarin
    知人知面不知心
    知人知面不知心
    zhī rén zhī miàn bù zhī xīn
    • One may know a person for a long time without understanding his true nature