らっかえだにかえらずはきょうふたたびてらさず

らっかえだにかえらずはきょうふたたびてらさず【落花枝に帰らず破鏡再び照らさず】

(exp) fallen blossom doesn't return to the branch, a broken mirror can not be made to shine; what's done is done; there's no use crying over spilled milk