There is a certain line of contemporary Catholic apologetic, more superficial than substantive, which has become fashionable in recent decades and runs generally like this: Because the Fathers of the Church, and later medieval giants such as St. Thomas Aquinas, drank from the wells of pagan philosophy, it is permissible, indeed laudable, for today’s Catholics to “engage” or “dialogue” with non-Catholic—even non-Christian or secular—“thought.” I use the term “thought” here loosely because oftentimes the “engagement” or “dialogue” being encouraged has more to do with religious-cultural traditions rather than any product of natural reason. That fact alone is more than sufficient to distinguish what St. Thomas was doing with the Corpus Aristotelicum from what certain fashionable Catholics have tried to do with, say, Buddhism or Vodun. Sticking with the realm of thought for a moment, it is necessary to note that even up until relatively recent times the Catholic “engagement” (or one might say “critique”) with non-Catholic (atheistic) philosophy was carried out in defense of the Faith and the Catholic intellectual tradition rather than a questionable attempt to artificially graft on some “alien wisdom.” Fr. Erich Przywara’s complex, and still widely misunderstood (or perhaps just underappreciated), critical engagement with Martin Heidegger comes quickly to mind. The Scholastic pushback against Modernism, which at best is only superficially Christian, is another example.