THREE:We are now in a position to understand the full force of Descartes�� Cogito ergo sum. It expresses the substantiality of self-conscious Form, the equal claim of thought with extension to be recognised as an element of the universe. This recognition of self-consciousness as the surest reality was, indeed, far from being new. The Greek Sceptics had never gone to the length of doubting their own personal existence. On the contrary, they professed a sort of subjective idealism. Refusing to go beyond their own consciousness, they found in its undisturbed self-possession the only absolute satisfaction that life could afford. But knowledge and reality had become so intimately associated with something independent of mind, and mind itself with a mere reflection of reality, that the denial of an external world393 seemed to the vulgar a denial of existence itself. And although Aristotle had found the highest, if not the sole absolute actuality in self-thinking thought, he projected it to such a distance from human personality that its bearing on the sceptical controversy had passed unperceived. Descartes began his demonstration at the point where all the ancient systems had converged, but failed to discover in what direction the conditions of the problem required that they should be prolonged. No mistake can be greater than to regard him as the precursor of German philosophy. The latter originated quite independently of his teaching, though not perhaps of his example, in the combination of a much profounder scepticism with a much wider knowledge of dogmatic metaphysics. His method is the very reverse of true idealism. The Cogito ergo sum is not a taking up of existence into thought, but rather a conversion of thought into one particular type of existence. Now, as we have seen, all other existence was conceived as extension, and however carefully thought might be distinguished from this as absolutely indivisible, it was speedily reduced to the same general pattern of inclusion, limitation, and expansion. Whereas Kant, Fichte, and Hegel afterwards dwelt on the form of thought, Descartes attended only to its content, or to that in which it was contained. In other words, he began by considering not how he thought but what he thought and whence it came��his ideas and their supposed derivation from a higher sphere. Take, for example, his two great methods for proving the existence of God. We have in our minds the idea of a perfect being��at least Descartes professed to have such an idea in his mind,��and we, as imperfect beings, could not have originated it for ourselves. It must, therefore, have been placed there by a perfect being acting on us from without. It is here taken for granted that the mechanical equivalence between material effects and their causes must obtain in a world where spatial relations, and therefore measurement, are presumably394 unknown. And, secondly, existence, as a perfection, is involved in the idea of a perfect being; therefore such a being can only be conceived as existing. Here there seems to be a confused notion that because the properties of a geometrical figure can be deduced from its definition, therefore the existence of something more than a simple idea can be deduced from the definition of that idea itself. But besides the mathematical influence, there was evidently a Platonic influence at work; and one is reminded of Plato��s argument that the soul cannot die because it participates in the idea of life. Such fallacies were impossible so long as Aristotle��s logic continued to be carefully studied, and they gradually disappeared with its revival. Meanwhile the cat was away, and the mice used their opportunity.183

Volunteer, Porshee Foundation

THREE:Driven by Christian intolerance from every other centre of civilisation, Greek philosophy found a last refuge in Athens, where it continued to be taught through the whole of the fifth century and the first quarter of the sixth. During that period, all the tendencies already indicated as characteristic of Neo-Platonism exhibited themselves once more, and contributed in about equal degrees to the versatile activity of its last original representative, Proclus (410-485). This remarkable man offers one of the most melancholy examples of wasted power to be found in the history of thought. Endowed with an enormous faculty for acquiring knowledge, a rare subtlety in the analysis of ideas, and an unsurpassed genius for their systematic arrangement, he might, under more favourable359 auspices, have been the Laplace or Cuvier of his age. As it was, his immense energies were devoted to the task of bringing a series of lifeless abstractions into harmony with a series of equally lifeless superstitions. A commentator both on Euclid and on Plato, he aspired to present transcendental dialectic under the form of mathematical demonstration. In his Institutes of Theology, he offers proofs equally elaborate and futile of much that had been taken for granted in the philosophy of Plotinus. Again, where there seems to be a gap in the system of his master, he fills it up by inserting new figments of his own. Thus, between the super-essential One and the absolute Nous, he interposes a series of henads or unities, answering to the multiplicity of intelligences or self-conscious Ideas which Plotinus had placed within the supreme Reason, or to the partial souls which he had placed after the world-soul. In this manner, Proclus, following the usual method of Greek thought, supplies a transition from the creative One to the Being which had hitherto been regarded as its immediate product; while, at the same time, providing a counterpart to the many lesser gods with which polytheism had surrounded its supreme divinity. Finally, as Plotinus had arranged all things on the threefold scheme of a first principle, a departure from that principle, and a subsequent reunion with it, Proclus divides the whole series of created substances into a succession of triads, each reproducing, on a small scale, the fundamental system of an origin, a departure, and a return. And he even multiplies the triads still further by decomposing each separate moment into a secondary process of the same description. For example, Intelligence as a whole is divided into Being, Life, and Thought, and the first of these, again, into the Limit, the Unlimited, and the absolute Existence (ο?σ?α), which is the synthesis of both. The Hegelian system is, as is well known, constructed on a similar plan; but while with Hegel the logical evolution is a progress from lower to higher and360 richer life, with Proclus, as with the whole Neo-Platonic school, and, indeed, with almost every school of Greek thought, each step forward is also a step downward, involving a proportionate loss of reality and power.

Volunteer, Porshee Foundation

Micheal Smith

Volunteer, Porshee Foundation