贝多芬的痛苦没人能知达芬奇的悲伤没人能懂
[bèi duō fēn de tòng kŭ méi rén néng zhī dá fēn qí de bēi shāng méi rén néng dŏng]
This translates to 'No One Understands Beethoven’s Suffering or Leonardo da Vinci’s Sadness.' It references the idea that great artists endure profound pain and sadness that is hard for ordinary people to comprehend.