I haven’t read Zen and the Art of Motorcycle Maintenance, so I can’t give a very extensive critique of the idea. But I will say that I’m inherently skeptical of any philosophy that does either of the following:
- Is called “The Metaphysics of _______.” (Recently I’ve become more or less a logical positivist, but with some healthy respect for phenomenological concepts.)
- Is based around something that the philosopher says is inherently indefinable.
As Wittgenstein would say, what we cannot speak of, we must pass over in silence. If Pirsig can’t speak directly of quality, then I’m going to pass.