所以蓝颜只为红颜而活红颜没有蓝颜怎么能行
[suŏ yĭ lán yán zhĭ wéi hóng yán ér huó hóng yán méi yŏu lán yán zĕn me néng xíng]
This phrase signifies that 'men (蓝颜, male friends) only live for the love and attention of women (红颜, female beauties).' It implies a mutual dependence between men and women for companionship and affection.