First Principles

Bill Vallicella (better known as the Maverick Philosopher, blog linked at right) posted this interesting tidbit on a quote attributed to Martin Luther in Table Talks. You can click on the link, but I will summarize and address my concern anyway, so you don't need to.

The quote is this: contra negantem prima principia non esse disputandum. In English: one should not dispute with those who disagree on first principles.

In context, Luther was referring to arguing with those who disagree on Biblical authority. The Maverick criticizes this take on theological debate, but goes on to apply it to the nature of truth. There is an absolute truth, and anyone who disputes that ought to be ignored, as arguing is merely a waste.

I agree with Dr. Vallicella on his second point, but I can't help but be irked at the simplistic response to the first. Luther was hardly an intellectual lightweight, and it does not seem particularly charitable to characterize this as a misapplication, and I have lately been exposed via experience to the wisdom of this quote of Luther's.

I belong to TheologyWeb where "we debate theology...seriously!" I am fascinated by apologetics, ethics and the nature of theological (and by correlation philosophical) truth. It was therefore hardly a surprise that I ended up finding myself drawn to discussions on the nature of God with Muslims, who explicity deny the Trinity and Christ's divinity. Now, I am okay with this if they are willing to debate from a Biblical foundation. The catch is that they are not.

It has been my observation that the entirety of Christian doctrine is principally a straw man Islamic construction. For example, in a thread on the Trinity, I invoked the Narnian Trilemma citing Jesus explicit and implicit claims to godhood in the Gospels, saying that Muslims could either revoke Jesus as a prophet of Islam or accept Christianity. Naturally, if they chose the former, the claim to Abrahamic succession falls flat and Muhammad becomes a standalone prophet. In response, a member effectively said "Muslims don't believe in the Gospels, so your argument doesn't count." He then went on to speak of gnostic writings and pseudepigrapha which are historically removed from the life of Jesus by at least a hundred years, whereas the Gospels are removed from Jesus by at most 50 years.

So, here is Islam saying they reject the most historically reliable sources, and when Old Testament is cited instead, they state that the Old Testament was corrupted by Jewish tradition instead of faithfulness to the actual revelation of God, therefore it was unacceptable. Try applying the same argument to the Koran, and you get shouted down because the Koran is the word of God.

I have since started to ignore any posts challenging Christian theological constructions from Muslims. When someone disputes first principles, it can be addressed such that this first principle can be shown to be true or false. (For example, I can disagree whether the Bible is true or false.) However, once a person denies first principles, it is pointless to argue with them as no argument, even from an Islamic contextual understanding (e.g. that all Biblical prophets are prophets of Islam), proves useful.

One really should not dispute with those who deny first principles. It's a waste of time.