His writing portrayed alchemy as a sort of terrestrial astronomy in line with the Hermetic axiom As above so below.
hɪz ɹˈaɪɾɪŋ poːɹtɹˈeɪd ˈælkəmi æz ɐ sˈɔːɹt ʌv tɚɹˈɛstɹɪəl ɐstɹˈɑːnəmi ɪn lˈaɪn wɪððə hɜːmˈɛɾɪk ˈæksɪəm æz əbˌʌv sˌoʊ bᵻlˈoʊ.