Deacon Steven Greydanus on Reason and Faith

Today and tomorrow I am posting tastes of two very interesting pieces by my friend Steven Greydanus. Today’s piece tackles the relationship of faith and reason in his very Catholic mind.

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Question from a young Catholic correspondent:

What’s the difference between faith and reason, if we reasonably believe in the Faith? Or what’s the relationship? Like, why do we need faith if we’re reasoning though what we believe?

Which is a question, on one level, for a book, or even a library section, rather than a short essay! Still, how can we at least begin to answer such a question?

I’m inclined to begin here: It seems to me that some kind of faith or trust is involved in knowing almost anything at all. We are fallible, finite knowers, and our senses and our intellect offer, at best, a narrow window onto reality. Using this window entails some level of trust regarding both the knowability of reality itself and the access to reality afforded by our cognitive toolset.

Most of us—particularly if we ever took a philosophy class, or stayed up late enough at night chatting with friends (perhaps in high school or college), or read books of a certain type, or possibly even if we’ve done none of these things—have at some point entertained questions like these:

  • How do I know that my sense experiences can be trusted?
  • How do I know, for instance, that I am not a brain in a vat (a Matrix scenario), or a mind in the grip of an illusion created by a powerful evil genius or demonic spirit (Descartes’ scenario)?
  • How do I know that how other people act bears any resemblance to what they are actually thinking and feeling? How do I know that everyone else isn’t pretending and I’m the only one who’s not in on it (a Truman Show scenario)?
  • How do I know that other minds exist at all? How do I know that everyone other than me isn’t a simulation?
  • How do I know that the universe didn’t come into existence this morning when I woke up, complete with false memories of prior events?

Much more here.

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