天若有情天亦老动我姐妹全撂倒
[tiān ruò yŏu qíng tiān yì lăo dòng wŏ jiĕ mèi quán liào dăo]
Meaning 'if heaven had feelings, it would grow old, if anyone touches my sisters I will knock them down', combining a philosophical reference to the impermanence even of heavens and a protective pledge towards friends or family members.