Also, in later editions of the book "On the Origin of Species', Darwin traced evolutionary ideas as far back as Aristotle; the text he cites is a summary by Aristotle of the ideas of the earlier Greek philosopher Empedocles.
ˈɔːlsoʊ, ɪn lˈeɪɾɚɹ ᵻdˈɪʃənz ʌvðə bˈʊk "ɔnðɪ ˈɔːɹɪdʒˌɪn ʌv spˈiːsiːz, dˈɑːɹwɪn tɹˈeɪst ˌɛvəlˈuːʃənˌɛɹi aɪdˈiəz æz fˈɑːɹ bˈæk æz ˈæɹɪstˌɑːɾəl; ðə tˈɛkst hiː sˈaɪts ɪz ɐ sˈʌmɚɹi baɪ ˈæɹɪstˌɑːɾəl ʌvðɪ aɪdˈiəz ʌvðɪ ˈɜːlɪɚ ɡɹˈiːk fɪlˈɑːsəfɚɹ ɛmpˈɛdɑːkəlz.