Chinese

		to fail to see; not to know; not to appreciate	Mount Lu, a famed mountain in northern Jiangxi, China.	real; true; genuine	face
trad. (不識廬山真面目)		不識	廬山	真	面目
simp. (不识庐山真面目)		不识	庐山	真	面目

Idiom

不識廬山真面目

1. to not recognize someone when you see them (despite the fact that you should know who the person is)