Augustine famously summarizes all of ethics in the maxim, “Love and do what you want” in his Homilies on the First Epistle of John, but also describes sin as misdirected love and humanity as characterized by sin. This raises the question as to how Augustine can offer such a maxim given humanity’s tendency to love so poorly. Aimed at ethicists and theologians with only a general knowledge of Augustine, this paper examines Augustine’s approach to ethics and its relationship to his (...) theology of the Holy Spirit. By exploring the ordo amoris, the uti/frui distinction, and the doctrine of the Spirit as the inner-Trinitarian Love of the Father and the Son, I attempt to show how Augustine’s maxim can fit with his hamartiology. (shrink)