If the Aristotelian argument for a purely actual Being (which I critiqued in my previous post) is the backbone of Feser’s five proofs of God’s existence, the Thomistic proof is the beating heart, as it gets to the very core of what God is: Pure Existence itself, according to philosophy Professor Edward Feser. Today, I’m going to argue that this notion of God is utterly nonsensical. But it is not merely the argument’s conclusion which is flawed: the Thomistic proof also rests on shaky foundations, as the real distinction it posits between a finite thing’s essence and its existence is a highly dubious one: the main argument cited in support of it actually points to a matter-form distinction, instead. The second argument for a real distinction between a thing’s essence and its existence establishes nothing of the sort: all it shows is that whatever causes a thing to have existence also causes the nature or essence of that thing. A third argument for the essence-existence distinction illicitly assumes that the term “existence” names a single perfection, which is inherently simple and unlimited.
In addition, Feser’s Thomistic proof trades on an equivocation between the notion of a Being whose essence is identical to its own existence and that of a Being whose essence is Pure Existence – an equivocation which is grounded in the background metaphysical assumption that the concept of “existence” is a simple and unlimited one. In reality, as I shall explain below, the concept of “existence” is neither simple nor complex, neither limited nor unlimited, but rather, indefinite – which is one reason why the attempt to characterize God as Pure Existence, or Being itself, is doomed at the outset. Finally, any attempt to construe God as some sort of activity – whether it be Pure Existence, Pure Actuality, or Thought thinking Itself, or Love loving Himself – is radically mistaken, either because it reifies an abstraction (Existence exists, Actuality acts) or because it generates an infinite regress (Love loves love loves love…). In plain English: We need to think of God first and foremost as a noun, and not merely as a verb – in other words, as an Agent, rather than simply as an unlimited act of thought or love or “be-ing.”
Despite its flawed conception of God, Feser’s Thomistic proof is not without its merits: Continue reading