He attempted to prove that the debt of original sin could only be discharged through a fully divine and fully mortal sacrifice in Why God Became A Human Being, and he discussed the angel's will to happiness and will to justice in De Casu Diaboli.  
He attempted to prove that the debt of original sin could only be discharged through a fully divine and fully mortal sacrifice in Why God Became A Human Being, and he discussed the angel's will to happiness and will to justice in De Casu Diaboli.  He promoted the doctrine of (*) "faith seeking understanding," and his most famous result posited that the greatest thing possible must surely be greater if it actually existed.  For 10 points, name this eleventh century theologian and archbishop of Canturbury whose Proslogion contains the ontological proof of the existance of god.
He attempted to prove that the debt of original sin could only be discharged through a fully divine and fully mortal sacrifice in Why God Became A Human Being, and he discussed the angel's will to happiness and will to justice in De Casu Diaboli.  
St. {Anselm}