Concerning the nature of change (kinesis) and its causes, as he outlines in his Physics and On Generation and Corruption (319b–320a), he distinguishes coming-to-be (genesis, also translated as 'generation') from:
kənsˈɜːnɪŋ ðə nˈeɪtʃɚɹ ʌv tʃˈeɪndʒ kənˈiːsɪs ænd ɪts kˈɔːzᵻz, æz hiː ˈaʊtlaɪnz ɪn hɪz fˈɪzɪks ænd ˌɔn dʒˌɛnɚɹˈeɪʃən ænd kɚɹˈʌpʃən θɹˈiːhˈʌndɹɪd nˈaɪntiːn bˈiː θɹˈiːhˈʌndɹɪd twˈɛnti ˈeɪ, hiː dɪstˈɪŋɡwɪʃᵻz kˈʌmɪŋtəbi dʒˈɛnᵻsˌɪs, ˈɔːlsoʊ tɹænslˈeɪɾᵻd æz dʒˌɛnɚɹˈeɪʃən fɹʌm: