阳光照不亮贱人的心深海看不透基友的情
[yáng guāng zhào bù liàng jiàn rén de xīn shēn hăi kàn bù tòu jī yŏu de qíng]
'Sunlight cannot illuminate the heart of a despicable person; the deep sea does not see through a friend’s sentiment' contains negative connotations, using dramatic imagery comparing sunlight and the ocean's depths to describe complex emotions towards others or oneself.