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Wednesday, August 25, 2010

More Notes on Real and Nominal

One of the most ancient philosophical debates is rooted in that seemingly magical power of the human mind to form what are called universals. All humans innately understand the difference between this particular dog, let’s call him Blackie, and the concept of dog meaning that category of animal to which all dogs belong. The first is a particular dog, the other is a universal. And the debate has swirled around the actual existence of the universal. Does that all-encompassing umbrella, Dog, under which all canines belong, really, substantially exist? Apart from people? Apart from human thought? If all people disappeared, indeed if all dogs died out—if the planet were engulfed by our sun going into nova, would there still be Dog the Universal somewhere out there, somewhere in the cosmic whole?

Plato answered Yes, and his eternal forms or ideas are precisely these universals. He was therefore a realist: universals are real. Aristotle answered No, but he is viewed as a moderate realist because he said that they do exist, but only ever if instantiated. If only the earth had dogs, and the earth blew up, Dog the Universal would disappear. (I for one consider Aristotle a nominalist, but never mind.) The nominalist position holds that universals are simply concepts, thoughts in the mind, objects of language. Redness, for instance, does not exist by itself separate from red things in actual existence. These three positions might be rendered as universals before the thing, universals in the thing, and universals after the thing. The last might be rephrased universals in the head.

This subject has fascinated me for years. My own intuition is Platonic. If the distinctions we perceive out there are real, that distinction must come before its manifestation. Plato certainly thought of his forms as generative principles. Only this view produces a meaningful cosmos in my view; the nominalist position, however, is compatible with a materialistic take on reality in which pure chance is the only causative principle. And I find moderate realism incoherent: the world is either meaningful or not. You can’t stop half way between these two positions.

At the same time, I’ve always had problems with Plato’s eternal forms out there, especially if used as an explanation for universals. A tricycle is a universal. Has it been eternally in the sky? Pondering this matter some years ago, and working from the bottom up—thus looking at human creations first—it occurred to me that Plato’s forms suddenly become quite meaningful if conceived of more dynamically as divine intentions. Other universals, in turn, may be referred to as human intentions. Now intentions derive their substantial reality from the agent who has intentions. God is God and humans are immortal; therefore all intentions retain their substantial reality, whether manifested or not, because the agents remain in existence.  This, I submit, is a nice solution to the problem of universals, favoring the Platonic view.

To this I might add another note yet. There is a difference between an intention on the one hand and its perception on the other. We did not intend the dog or redness. Those universals we merely perceive. But we perceive them because someone intended them and they do actually manifest.

The above as an elaboration to the mention of Ochkam’s nominalism toward the end of yesterday’s post.

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