Kant on the Cosmological Argument
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Philosophers’ volume 14, no. 12 Introduction may 2014 Imprint In the section of the first Critique entitled “The Ideal of Pure Reason,” Kant constructs an elaborately layered critique of the so-called “cos- mological proof” of the existence of God.1 He portrays the cosmologi- cal argument (as I shall more neutrally term it) as having three main phases.2 First, one observes that there is at least one existent being, and argues that it exists contingently (28: 1006). Second, appealing to the Principle of Sufficient Reason, one argues for the existence of Kant on the an absolutely necessary being as the ultimate cause (A 605/B 633n*) or ground (28: 1006) of this contingently existing being. Third, one argues that this absolutely necessary being is a most real being — or ens realissimum (A 605–6/B 633–34). In “The Ideal,” Kant presents Cosmological Argument this third step as drawing the argument to a close (A 606/B 634). But, judging by his discussion in the Religion Lectures, he sometimes con- ceives of the argument as intended to be completed by a sort of coda in which one argues that the absolutely necessary being, since it is an ens realissimum, must possess each of the traditional “divine attributes.”3 Kant raises three main objections to this version of the cosmologi- cal argument. First, it “presupposes” the correctness of the ontological argument in the sense, apparently, of tacitly incorporating the onto- logical argument as a proper part (A 607/B 635; A 608–9/B 636–7). Second, it commits an ignoratio elenchi, a fallacy of arguing for some- thing other than what was at issue (A 609/B 637). It does so, Kant Ian Proops thinks, because the proponent of the argument, having promised to establish the existence of an absolutely necessary, “highest” being — that The University of Texas at Austin is, a necessarily existent most real being — on the basis of empirical assumptions, in practice first contends for a weaker conclusion and then, in order to arrive at the stronger, desired conclusion, reverts to 1. A 603/B 631–A 614/B 642. 2. Kant is plainly not using “proof” as a success word, but I will avoid following © 2014 Ian Proops him in this because the practice can today sound jarring. This work is licensed under a Creative Commons 3. See 28: 1037 and 28: 1047–49 for some of the relevant arguments. There is also an allusion to this step in the first Critique itself (A 580/B 608). Kant, Attribution-NonCommercial-NoDerivatives 3.0 License. however, ignores it in his official critical discussion of the argument at A 603– <www.philosophersimprint.org/014012/> 06/B 631–34. ian proops Kant on the Cosmological Argument the well-trodden (a priori) path of the ontological argument (ibid.). the first phase of the argument — the part that proceeds by pushing an Third, the cosmological argument presupposes the ontological argu- explanatory or causal regress to its limit — is that there is some being ment, but not merely because it tacitly assumes the soundness of the that cannot exist in any other way than the way in which it actually ex- ontological argument as a premise (A608/B 637). Since he takes him- ists, a being that, as Kant puts it himself, is capable of existing “only in self to have established the unsoundness of the ontological argument one single way [nur auf eine einziger Art]” (A 605/B 633; 28: 1029).4 Such earlier in “The Ideal,” Kant concludes that the cosmological argument a being would be one for which the question “Why does this being must be unsound. exist thus and not otherwise?” would not arise. And it would not do Kant also raises certain other objections to the cosmological argu- so simply because it would be an impossibility for this being to exist ment, including the charge that it attempts to employ the Principle otherwise than it actually does. In what follows, I will refer to a being of Sufficient Reason beyond its legitimate domain of application (A so conceived as an “essentially unimodal being.” 609–10/B 638). But it is clear that he wishes to rest the weight of his Because, in Kant’s view, the first phase of the cosmological argu- criticism on these three main points. ment would at best establish the existence of an essentially unimod- Although it is broadly agreed that Kant announces these three criti- al being, the argument must, he thinks, be supplemented by an a cisms, not every commentator has been persuaded that Kant really de- priori train of reasoning in which it is argued (1) that this essentially velops all three of them. Most notably, Allen Wood, in his perceptive unimodal being is an ens realissimum (or most real being), and (2) study of Kant’s philosophy of religion, contends that Kant, in spite of that this ens realissimum exists necessarily or, to put it another way, presenting himself as developing all three criticisms in “The Ideal,” in that it is a necessary being. I will refer to these parts of Kant’s re- practice makes a case only for the third (Wood 1978, 124–25). Wood construction of the cosmological argument as the second and third is certainly right that this is how things seem, but I will argue that a “phases” of the argument. closer look at the relevant texts reveals his assessment to be mistaken. Kant, I will argue, sees the cosmological argument as containing Kant does, indeed, develop all three criticisms in “The Ideal.” More- the ontological argument as a proper part because he believes that the over, I shall argue that it matters greatly that he should have done so; former must appeal to the latter if it hopes to show not merely that the for it is the two criticisms that Wood takes Kant to have failed to de- ens realissimum exists, but that it exists necessarily — a conclusion that velop that turn out to be the most promising. for Kant must mean that it exists from its very concept (or so, at least, The key to recognizing all three of Kant’s announced objections as I will argue). working parts of his critical case is, I shall argue, to reflect on the fol- 4. Kant sometimes speaks of an “absolutely necessary being” and sometimes lowing question: to what kind of contingent fact does Kant see the cos- merely of a “necessary being.” In the present context, it is clear that the latter mological argument as appealing? I will argue that the answer turns phrase is intended to abbreviate the former. The qualification “absolutely” is intended to mark a contrast — familiar from the writings of Leibniz and Wolff, out to be somewhat unexpected: Kant sees his opponent as appeal- and going back (at least) to Aquinas — between absolute and hypothetical ing not to the assumption that something observably existent might necessity. A hypothetically necessary being is one whose existence is nec- essary on some condition, while an absolutely necessary being is one whose not have existed at all, but rather to the assumption that it might have existence is unconditionally necessary. Kant, of course, believes that there existed but not in the way in which it actually exists — to the assumption, are numerous hypothetically necessary beings because he regards any (non- initial) state of the empirical world and any (non-initial) event within it as in other words, that it might have existed in some other way. Accord- necessarily existent given the laws of nature and the existence of a previous state of ingly, he supposes that the most that one could hope to establish in the world. philosophers’ imprint – 2 – vol. 14, no. 12 (may 2014) ian proops Kant on the Cosmological Argument The version of the ontological argument that Kant concentrates on 633) — see section 3 for details. Third, one of Kant’s actual historical throughout his discussion, I will argue, is the Leibnizian version — one opponents, Christian Wolff, turns out to be committed to thinking of that begins with an attempt to establish the consistency of the concept an absolutely necessary being as an essentially unimodal being since of the ens realissimum (New Essays, bk. 4, chap. 10, 437–38). I will ar- he conceives of a contingent being as a being that is capable of having gue that Kant sees the particular version of the cosmological argument existed in some other way — see section 2. Finally, on the assumption that he attributes to his opponent as containing (what amounts to) an that the first phase of the argument purports to establish only the exis- attempted proof of this same consistency assumption. He views the tence of an essentially unimodal being, we can explain why the notion matter this way because the train of reasoning constituted by the first of a being that is capable of existing “only in one single way” figures in two phases, since it purports to establish the existence of an ens realis- Kant’s discussion at A 605/B 633 (compare: 28: 1029). simum, will — if sound — trivially suffice to establish the consistency of The essay is divided into five sections and a conclusion. The first the concept of an ens realissimum. section examines Kant’s reconstruction of the first phase of the cos- It will take a good deal of work to show how these ideas play out mological argument. I contend that he sees this phase as capable at in detail, and how they are grounded in Kant’s texts, but I preview best — that is, waiving certain other objections — of establishing only them here in the hope of helping the reader keep track of the twists the existence of an “absolutely necessary being” conceived of as an es- and turns in Kant’s rather complicated reconstruction of his oppo- sentially unimodal being.