理直气壮

理直氣壯
lǐzhíqìzhuàng
  1. in the right and self-confident (idiom); bold and confident with justice on one's side
  2. to have the courage of one's convictions
  3. just and forceful

CEDICT

Entry Composition

1 理 lǐ
  1. texture
  2. grain (of wood)
  3. inner essence
  4. intrinsic order
  5. reason
  6. logic
  7. truth
  8. science
  9. natural science (esp. physics)
  10. to manage
  11. to pay attention to
  12. to run (affairs)
  13. to handle
  14. to put in order
  15. to tidy up
2 直 zhí
  1. straight
  2. to straighten
  3. fair and reasonable
  4. frank
  5. straightforward
  6. (indicates continuing motion or action)
  7. vertical
  8. vertical downward stroke in Chinese characters
3 气 qì
  1. gas; air
  2. smell
  3. weather
  4. to make angry; to annoy; to get angry
  5. vital energy; qi
4 壮 zhuàng
  1. to strengthen
  2. strong
  3. robust