John Haldane

“done to show that this is not so (which is not to say that there are no points of difference between Thomistic and Aristotelian metaphysics). The dominant form of neo-Platonism in medieval Christian thought was Augustinianism. It is little wonder that the Platonic tradition should have seemed agreeable to the early Church Fathers, for it is not difficult to map Christian beliefs and practices into central elements of neo-Platonism. Most fundamentally, just as the Christian distinguishes between the physical cosmos and the eternal kingdom of God, so Plato and his followers distinguish between the material world and the timeless and unchanging realm of immaterial forms. Similarly, Christians commonly distinguish between body and soul and look forward to life after death in which the blessed will enjoy forever the sight of God; while Platonists contrast the mortal frame and the immortal mind that will ascend to eternal vision of the forms. Supreme among these forms is that of the One whose principal aspects are those of truth, beauty and goodness; a trinity-in-unity ready-made to assist Christians struggling with the idea that God is three persons in one divinity. The lesser Platonic forms, including those corresponding to natures experienced in the empirical world, became the ideas out of which God created the world. Even Christian mysticism found its rational warrant in the idea that the most noble experiences consist in inexpressible encounters with transcendental realities. Aristotle came into his own as a philosopher through his rejection of the fundamental tenets of Platonism and through his provision of a more naturalistic and less dualistic worldview. It is hardly surprising, therefore, that the enthusiasm for Aristotelianism shown by Aquinas and by his teachers Peter of Ireland and Albert the Great was viewed with suspicion by the Augustinian masters of the thirteenth century. Even so, it is a serious mistake, still perpetrated today, to represent Aristotle as if he were some sort of scientific materialist. In one of the classics of analytical philosophy, Individuals: An Essay in Descriptive Metaphysics, Peter Strawson explains his subtitle by distinguishing between two types of philosophy, writing that ‘descriptive metaphysics is content to describe the actual structure of our thought about the world, [while] revisionary metaphysics is concerned to produce a better structure’.7 He goes on to point out that few if any actual metaphysicians have been wholly of one or other sort, but that broadly speaking Leibniz and Berkeley are revisionary while Aristotle and Kant are descriptive. In these terms Aquinas’s thought and thomist metaphysics are fundamentally ‘descriptive’, notwithstanding that they are at odds with the materialism and scientism which some contemporary philosophers proclaim as enlightened common sense. The words of G.K. Chesterton quoted at the outset of this chapter”
― John Haldane, Reasonable Faith