大勇若怯，大智若愚 [－－－－－－－－－]

Jyutping daai6 jung5 joek6 hip3 , daai6 zi3 joek6 jyu4
Pinyin dà yǒng ruò qiè , dà zhì ruò yú

Definitions (CC-CEDICT)
  1. a great hero may appear timid, the wise may appear stupid (idiom); the general public may not recognize great talent