idiom > be soft inside despite one’ s hard show
Contents
内柔外刚
Pinyin: nèi róu wai gāng

Explanation: 内心柔弱,外表刚强。亦作“外刚内柔”。

Source: 《易经·否卦》内阴而外阳,内柔而外刚。”

nèi róu wài gāng
  Soft inner calm, looks sturdy, stern not guilty
Translated by Google
English Expression
  1. n.:  be soft inside despite one’ s hard show