Dictionary/知人知面不知心

知人知面不知心

zhī rén zhī miàn bù zhī xīn

ㄓ ㄖㄣˊ ㄓ ㄇㄧㄢˋ ㄅㄨˋ ㄓ ㄒㄧㄣ
Idiom
1one may know a person for a long time without understanding his true nature (idiom)

Characters

知人知面不知心