In 1837, he declared, "[The] Institution of slavery is founded on both injustice and bad policy, but the promulgation of abolition doctrines tends rather to increase than abate its evils."
ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd θˈɜːɾi sˈɛvən, hiː dᵻklˈɛɹd, "ðə ˌɪnstɪtˈuːʃən ʌv slˈeɪvɚɹi ɪz fˈaʊndᵻd ˌɔn bˈoʊθ ɪndʒˈʌstɪs ænd bˈæd pˈɑːlɪsi, bˌʌt ðə pɹˌɑːməlɡˈeɪʃən ʌv ˌæbəlˈɪʃən dˈɑːktɹɪnz tˈɛndz ɹˈæðɚ tʊ ɪŋkɹˈiːs ðɐn ɐbˈeɪt ɪts ˈiːvəlz."