業精於勤而荒於嬉 [业－于－－－于－]

Jyutping jip6 zing1 jyu1 kan4 ji4 fong1 jyu1 hei1
Pinyin yè jīng yú qín ér huāng yú xī

Definitions (Wiktionary)
  1. proverb
    Synonym of 業精於勤，荒於嬉／业精于勤，荒于嬉 (yè jīng yú qín, huāng yú xī, “academic excellence is achieved through diligence, while studies are neglected and deteriorate when one frolics”).
    (syn.) 荒於嬉, 业精于勤, 荒于嬉, 業精於勤