Abstract

This chapter argues that Abelard understood, incorporated, and in some cases developed more fully an ethical outlook to be found in Augustine’s writings. In characterizing sin as contempt of God, Abelard rejects views that maintain that sin is a vice, or a bad deed, or even the will to perform a bad deed. Sin is precisely the intention to do evil. Abelard thus distinguishes sharply between acting willingly and acting intentionally. The justification for the distinction can be found in the difference between Augustine’s De Libero Arbitrio and his De Sermone Domini in Monte. This chapter explores several ramifications of Abelard’s intentionalism, including the analysis of intention as a kind of consent, differences between intentions and desires, the role of natural law, ignorance, and mistaken belief.