Another argument against epiphenomenalism is that if thought is merely a by-product of matter, a kind of fart of the brain, then you can’t account for the validity of thought—of any thought, and therefore of that thought, too. If we can’t help how our tongues happen to wag because some blind and dumb molecules are pushing it one way rather than another, then why should you pay attention to my words any more than to tea leaves in the fortune-teller’s cup? It seems to me that materialism is akin not to science but to primitive superstition.
--Peter Kreeft, Letters to an Atheist, 2014
