冷冷冷冷冷冷不过人心
[lĕng lĕng lĕng lĕng lĕng lĕng bù guò rén xīn]
A play on words, literally coldness does not compare with the human heart - it expresses disillusionment with the callousness of human emotions or intentions, saying indifference and ingratitude run deep beyond simple temperature sensations, highlighting emotional chilliness over physical.