He delivered sermons on the duties of parents to their children and children to their parents, the duties of the rich to the poor and the poor to the rich.
Dia menyampaikan khotbah tentang kewajiban orangtua terhadap anak mereka dan kewajiban anak-anak terhadap orangtua, kewajiban orang kaya terhadap orang miskin dan kewajiban orang miskin terhadap orang kaya.