bù​yǐ​rén​fèi​yán

not to reject an opinion because of the speaker

  1. 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. to reject a word because of the speaker
    To disregard a reasonable statement solely because of the speaker's status or negative reputation; to judge advice based on personal preference for the person rather than the merits of the case.