不做亏心事，不怕鬼敲门
bù​zuò​kuī​xīn​shì​bù​pà​guǐ​qiāo​mén

to have a clear conscience

  1. 不 bù adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  2. 做 zuò verb
    to do
    To do, perform, or engage in a task or activity; to carry out work
  3. 亏心事 虧心事 kuī​xīn​shì
    shameful deed
    A deed that goes against one's conscience; unconscionable act; shameful thing to do.
  4. ， bù
    non-Chinese
  5. 不 bù adverb
    not
    Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings
  6. 怕 pà verb
    to fear
    to be afraid; to dread; to be scared of something
  7. 鬼 guǐ noun
    ghost
    ghost; disembodied spirit; devil
  8. 敲门 敲門 qiāo​mén verb + noun
    to knock on the door
    to knock on a door; to rap on a door