St. Thomas Aquinas
Shines bright with no backlight!
St. Thomas Aquinas (1225-1274) was the father of the Thomistic school of philosophy and theology, and was known for his views on natural theology. He is considered by many to be the model teacher for those studying for the priesthood.
Aquinas felt the best approach to understanding the nature of God was to consider what god is not (the via negativa.) Although he lived less than fifty years, he was a voracious reader and a prolific writer, with over 60 works to his credit. His writings shaped both Roman Catholic and Anglo-Catholic thelogy greatly, and are components of many aspects of modern Christian theology.