溺水三千只为博红颜一笑
[nì shuĭ sān qiān zhĭ wéi bó hóng yán yī xiào]
'Would Drown in Water Ten Thousand Times Just to See the Beauty Smile.' Taken from ancient Chinese romances, it portrays the lengths one would go to win someone's heart or make them smile, indicating undying passion and dedication.