I loved Georgetown from the first day that I set my footlocker down in Healy Circle and asked an upperclassman how to find a room to put it in. I loved the Jesuits, too. In my novel “The Exorcist,” I thanked them for “teaching me to think.” Georgetown gave me the gift of a liberal education that included the keys of reason to unlock the mysteries of faith. Throughout an undeservedly wonderful life, I have been guided by the light of my Georgetown education, grounded firmly, as I had been even in my youth, in the unmatched intellectual wealth of...