業精於勤

yèjīngyúqín

mastery of work comes from diligent application; a subject is mastered through diligent study

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ye4 jing1 yu2 qin2

mastery of study lies in diligence (idiom). You can only master a subject by assiduous study., Excellence in work is only possible with diligence., Practice makes perfect.

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業精於勤|业精于勤 [yè jīng yú qín] ► mastery of study lies in diligence (idiom). You can only master a subject by assiduous study. ► Excellence in work is only possible with diligence. ► Practice makes perfect.