墙里开花墙外香

墙里开花墙外香

Literally means:

a flower tree in blossom sends out fragrance to the outside of the wall

Actually means:

a prophet is not without honor, save in his own country

It figuratively means good persons and good deeds especially talented people and their skills are highly regarded elsewhere, but not in their own working elsewher place. It is often used to indicate that some organizations ignore good persons and good deeds under their own noses.

比喻好人好事特别是人才或技术在本单位不受 重视,而在外面却很有名气。