Monologion -- Proslogion -- Gaunilo's reply on behalf of the fool -- Anselm's reply to Gaunilo -- Three philosophical dialogues -- On truth -- On freedom of choice -- On the fall of the Devil -- On the incarnation of the Word -- Cur deus homo -- On the virginal conception, and on original sin -- On the harmony of God's foreknowledge, predestination, and grace with free choice )De concordia( -- The Lambeth fragments