[[Image:Augustine of Hippo.jpg|right|thumb|St. Augustine]]
'''Saint Augustine''' or '''Augustine of Hippo''' (A.D> . 354-430) is considered one of the great fathers of the [[Christian]] church, and has been of momentous importance in the development of Christian thought. It was Saint Augustine who first developed the Christian doctrine of "[[original sin]]," upon which [[Saint Thomas Aquinas]] later expanded.
== Life ==