St. Thomas Aquinas is known for producing history's most complete system of Christian philosophy. In the late 13th century, this quiet, reflective Dominican scholar combined the work of Aristotle with Christian, Jewish, Muslim, and pagan thought to reconcile reason and faith. For Thomas, intellectual knowledge is a sign of the spirituality that energizes the human center. He believed we can know that God exists, but not what God is like.
"Mostly on the Summa"