Adler, Mortimer Jerome. How to Think about God: A Guide for the 20th-century Pagan* ; *one Who Does Not Worship the God of Christians, Jews, or Muslims ; Irreligious Persons. New York: Collier, 1991. Print.
In this seminal work by Adler, the esteemed philosopher attempts to show a reasonable, rational demonstration (but not proof) of the existence of God. Aware that the word “God” itself is not unproblematic, Adler spends a great deal of the book establishing what he means by the word. He demonstrates, first of all, that “God” is a unique, unclassifiable object. God is unique because it points to one object and one only, as for example a proper name like “Charles St-Onge” or “Apollos.” It is unclassifiable because there are no other members of a class of which God would be a member, unlike Charles St-Onge (class human) or Apollos (class gods worshipped by the ancient Greeks). Adler insists also on elucidating a definite description of God, such that the description could refer to no other object. This definite description must be exchangeable in discussion for the word “God” itself. This description will of course be a theoretical concept and not an empirical one, but that Adler feels shouldn’t bother us, as much as it might have bothered someone such as Kant:
[Kant]‘s strictures against theological inquiry [using pure reason] lose all their force when we recognize that theology, like nuclear physics and cosmology in the 20th century, uses theoretical constructs, not empirical concepts, to deal with objects that lie beyond the range of ordinary or common experience. If, for that reason, theological inquiry cannot be legitimately and validly conducted, the same reason would make nuclear physics and contemporary cosmology illegitimate and invalid enterprises. (68)
Adler finds Anselm’s ontological argument to be faulty as a proof for God’s existence, but very useful in providing a first step toward a definite description God. God is 1) the one and only supreme being, 2) which actually does exist in reality, and 3) cannot not so exist. God is the being “than which no greater can be thought of” (72). The second step requires us to consider what the existence of such a God is like. Adler concludes that God’s existence is both “like and unlike the existence of everything else that really exists” (80). In the sense that we exist, and that God exists (see 2 above), we are “alike.” In other words, God is not merely an object of thought. Yet since God cannot be “shown under a microscope,” so to speak, God’s existence must be be unlike ours – and that of everything else in the observable cosmos. God is non-physical, immaterial and incorporeal (88). God is therefore non-natural. Alder moves on to consider that God must be necessary, and not contingent, and so have aseity (from the Latin “a se,” that which exists in, through and from itself). That further leads us to conclude that God must be immutable and non-temporal. That which is mutable or temporal is affected by something else, and does not have aseity.
Adler must now demonstrate that the God he has described “exists,” a unique existential proposition. While we cannot demonstrate or prove the existence of such a God, we can infer God’s existence. Adler believes we can do so in a way similar to how sub-atomic particles are inferred. They cannot be directly observed, and yet if they did exist they would explain other observed phenomena. On the other hand the inference is different, in that the inference of God’s existence cannot be falsified by any known fact.
Adler reminds his readers of the distinction between necessary being (a se), contingent being (ab alio), and something being a causa essendi (reason for existence) and a causa fieri (reason for change). A causa essendi is that which is necessary for existence, that is an exnihilating cause (out of nothing). He also reminds his readers of the principle of sufficient reason, that everything that exists or happens has a sufficient reason for existing or happening in itself or in another. Adler points out that the absurdity of atheistic existentialism by pointing out that
What does not have a raison d’etre or a cause of its existence in itself trembles on the verge of nothingness. Only if some cause exists and operates to preserve it in existence is it saved from annihilation… (118)
But all natural causes of which we know are contingent. They are all causa fieri, not causa essendi. And yet the cosmos, and us in it, continue to exist. How can this be so? Thus the inference to the existence of the God described earlier by Adler. Adler summarizes his argument in this way:
- IF the existence of a certain effect implies the coexistence of its cause, and
- IF whatever exists either does or does not need a cause of its continuing existence every moment of its existence, and
- IF contingent beings are such that they do need a cause of their continuing existence at every moment of their existence, and
- IF the cause they need must exist and act on them at every moment of their existence, and
- IF not contingent being can be the cause that acts to sustain any other contingent being in existence, and
- IF one or more contigent beings are known to exist, continuing in existence during the time that they endure;
- THEN it follows that a necessary being exists as the cause which acts to sustain in existence the contingent beings that have a continuing existence while they endure. (119-120)
Adler finds one premise that seems faulty. That would be premise 3, where inertia can serve as an adequate explanation for the continued existence of a contingent being without a continual cause of existence. Beings are superficially contingent, but not radically contingent. Matter and energy are conserved; things transform, but they are neither observed to be exnihilated or annihilated. But what about the cosmos as a whole?
Here Adler makes the bold move of assuming that the steady-state theory of the universe continues to hold. The cosmos had always existed, and always will exist. Is the cosmos superficially or radically contingent? If the cosmos ceased to exist, would there still be something or nothing in its place? Can the cosmos be truly annihilated and not simply transformed from one state of being into another? Adler asks a basic question: is this cosmos the only possible cosmos? Physicists insist the answer is no. It is simply one of many possible cosmoses. If it is only one of many possible cosmoses, then is it not possible that the cosmos might not exist at all? Adler puts it this way:
A merely possible cosmos cannot be an uncaused cosmos. A cosmos that is radically contingent in its existence, and needs a cause of that existence, needs a supernatural cause – one that exists and acts to exnihilate this merely possible cosmos, thus preventing the realization of what is always possible for a mrerely possible cosmos; namely, its absolute non-existence or reduction to nothingness. (144)
Adler can now return to the real world, where the cosmos as we observe it is held to have had a beginning, and not be in a steady state. God now appears not only as the preservative cause for the universe, but also as its creator.
The crux of the argument hinges on where one wishes to hang the hat of inexplicability: at the doorstep of the universe’s existence, or at the doorstep of a deity. One could, for example, still argue that the cosmos is simply uncaused. Physicist Alan Guth has famously written “the universe is just one of those things which happen from time to time,” the ultimate (in his words) “free lunch” caused (caused?) by quantum fluctuations in nothingness. But quantum mechanics, it could be argued, is a fundamental feature of the universe itself and not something apart from it. If our cosmos was spawned by another cosmos, then the entire set of cosmoses must be considered the subject of Adler’s inference. In case of infinite regression, take the entire regression as the set in question.
In any case, there is certainly some interesting work to be done evaluating Adler’s argument against advances in modern cosmology. And while it does not “prove” the existence of a God with Adler’s definite description, it points tantalizingly in that direction.