Non-onto-theo-logical : Parallels in Thomas Aquinas’ and Martin Heidegger’s Thought on God and Being

Acharya, Rajat

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Non-onto-theo-logical : Parallels in Thomas Aquinas’ and Martin Heidegger’s Thought on God and Being

Acharya, Rajat

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Acharya, Rajat

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The question of whether Thomas Aquinas’ concept of God qua be-ing (esse) exemplifies Martin Heidegger’s concept of ontotheology seems to have initially arisen in the 1950s and has since roused considerable interest in every decade thereafter, not only because of its academic and ecclesial implications, but also because, despite having been so frequently asked, it has yet to be answered decisively. This thesis is an attempt to ask and answer the question decisively, so as to draw scholarship on the question towards consensus. First, the thesis defines Heidegger’s concept of ontotheology with an account of its development, its structure, its structuration, and its implication of oblivion of be-ing (Sein) and conceptual idolatry. Second, based on this definition, the thesis demonstrates that Heidegger must have categorised Aquinas’ concept of God qua esse as ontotheological, firstly, because Heidegger judged Christianity itself ontotheological and Aquinas is Christian, and, secondly, because Aquinas’ description of metaphysics seems discussed by Heidegger as an ontotheological structure governed by an ontotheological centre, to wit, God qua esse. However, it is argued that this categorisation is falsifiable if Aquinas’ concept of God qua esse does not imply oblivion of Sein or conceptual idolatry. And the thesis proceeds to prove, third, how Aquinas’ thought of esse parallels Heidegger’s thought of Sein in an overcoming of such oblivion, and fourth, how the former’s analogically determined coordination of kataphaticism and apophaticism in his threefold way parallels the latter’s thought about how God ought to be thought in an overcoming of such idolatry. Thus, even if Heidegger was right about his concept of ontotheology in general, he was wrong in having thought that Aquinas’ concept of God qua esse exemplifies it in particular. And, by implication, Christianity is also proven non-ontotheological, at least insofar as this concept of God qua esse exemplifies it.