真人不露相

zhēnrénbùlòuxiàng
the sage presents as an ordinary person (idiom)

CEDICT

A truly talented individual does not vie for attention by showing off his skills.

Wiktionary

修真得道的人不輕易現出本相。比喻有真本領和才能的人不輕易顯露其才華。

重編國語辭典

Entry Composition

1 真人 zhēnrén
  1. a real person
  2. Daoist spiritual master
2 不 bù
  1. no; not so
  2. (bound form) not; un-
3 露相 lòuxiàng to show one's true colors