光再倾城也温暖不了人心
[guāng zài qīng chéng yĕ wēn nuăn bù le rén xīn]
In this idiom '倾城' means someone has a very beautiful appearance, while '人心' represents a person's feelings, thoughts or soul. Therefore, this nickname expresses a feeling that physical beauty or charm can never touch one's inner world.