hiː ɪz ˈɔːlsoʊ wˈɛl nˈoʊn fɔːɹ hɪz kəmplˈiːʃən ʌvðə dɚ ɹˈɛdʒɪmˌaɪn pɹˈɪnsɪpəm"ɔnðə ɡˈʌvɚnmənt ʌv ɹˈuːlɚz", wˌɪtʃ ˈækwɪnəz hɐdbɪn ʌnˈeɪbəl tə fˈɪnɪʃ bᵻfˌoːɹ hɪz dˈɛθ.
He is also well known for his completion of the De Regimine Principum ("On the Government of Rulers"), which Aquinas had been unable to finish before his death.