THREE:In estimating the intellectual character of Plotinus, we must also remember that the theory of the absolute One occupies a relatively small place in his speculations; while, at a rough computation, the purely mystical portions of his writingsby which we understand those in which allusion is made to personal and incommunicable experiences of his own315do not amount to more than one per cent. of the whole. If these have attracted more attention than all the rest put together, the reason probably is that they offer an agreeable relief to the arid scholasticism which fills so much of the Enneads, and that they are the only very original contribution made by Plotinus to Greek literature. But the significance of a writer must not always be measured by his most original passages, and this is eminently true of our philosopher. His great merit was to make the spiritualism of Plato and Aristotle more intelligible and interesting than it had been before, and to furnish reason with a rallying-point when it was threatened with utter destruction by the religious revival of the empire.This absolute separation of Form and Matter, under their new names of Thought and Extension, once grasped, various principles of Cartesianism will follow from it by logical necessity. First comes the exclusion of final causes from philosophy, or rather from Nature. There was not, as with Epicurus, any anti-theological feeling concerned in their rejection. With Aristotle, against whom Descartes is always protesting, the final cause was not a mark of designing intelligence imposed on Matter from without; it was only a particular aspect of Form, the realisation of what Matter was always striving after by virtue of its inherent potentiality. When Form was conceived only as pure thought, there could be no question of such a process; the most highly organised bodies being only modes of figured extension. The revival of Atomism had, no doubt, a great deal to do with the preference for a mechanical interpretation of life. Aristotle had himself shown with masterly clearness the difference between his view of Nature and that taken by Democritus; thus indicating beforehand the direction in which an alternative to his own teaching might be sought; and Bacon had, in fact, already referred with approval to the example set by Democritus in dealing with teleological enquiries.
We like seeing designers experimenting with the gradations between two extremes. Take wristwatches, for instance.