深海再深不及人心但我信你黑夜再黑不及情薄但我懂你
[shēn hăi zài shēn bù jí rén xīn dàn wŏ xìn nĭ hēi yè zài hēi bù jí qíng bó dàn wŏ dŏng nĭ]
Even if the deep sea cannot compare to human hearts, I believe you; even if the night is darker than the thin love, I still understand you. The phrase expresses deep empathy and understanding despite knowing that love might not be enough and human nature is unpredictable.