情深说话未曾讲深情久伴不言语
[qíng shēn shuō huà wèi céng jiăng shēn qíng jiŭ bàn bù yán yŭ]
'When love runs deep, there are things left unspoken; when true emotions endure, silence speaks louder than words.' This emphasizes deep but taciturn affection and commitment expressed more by enduring presence and loyalty rather than vocal declarations.