wear out an iron inkslab—study assiduously ? 他一生發(fā)揚(yáng)了～的精神，在學(xué)術(shù)上有很高的造詣。He displayed the spirit of wearing out an iron inkslab all his life and became a man of great academic attainments.
磨穿鐵硯mo chuan tie yan
wear out an iron inkslab—study assiduously
磨穿鐵硯mó chuān tiě yàn
鐵硯：鐵鑄的硯臺(tái)。磨穿了鐵鑄的硯臺(tái)。形容用功讀書，持久不懈。long years of ardent study, study assiduously, grind away at one’s studies