kɹˈɑːsbi sˈɔː stɐtˈɪstɪkəl kwˈɔlᵻɾi kəntɹˈoʊl ænd ðɪ ˌɛmˌaɪˈɛlkjˈuː nˈaɪn θˈaʊzənd ˈeɪthˈʌndɹɪd fˈɪfti ˈeɪt stˈændɚd æz kəntɹˈɪbjuːɾɪŋ tə ðɪs θɹuː ɐksˈɛptəbəl kwˈɔlᵻɾi lˈɛvəlz—ɐ kˈɑːnsɛpt ðæt ɐlˈaʊz ɐ sˈɜːʔn̩ nˈʌmbɚɹ ʌv ɐksˈɛptəbəl dˈiːfɛkts ænd ɹˌiːɪnfˈoːɹsᵻz ðɪ ˈæɾɪtˌuːd ðæt mɪstˈeɪks ɑːɹ ɪnˈɛvᵻɾəbəl.
Crosby saw statistical quality control and the MIL-Q-9858 standard as contributing to this through acceptable quality levels—a concept that allows a certain number of acceptable defects and reinforces the attitude that mistakes are inevitable.