冷漠是深入骨髓的孤独
[lĕng mò shì shēn rù gú suĭ de gū dú]
'Indifference is solitude entrenched to the core.' It poignantly reveals an understanding or experience where apathy or emotional numbness arises profoundly out of deeply ingrained feelings of lonliness, indicating severe isolation that impacts behavior externally through coldness or nonchalance towards surroundings.