THREE:Meanwhile the old principle of universal doubt could no longer be maintained in presence of the certainties already won by modern science. Man, in the time of Newton, had, as Pope tersely puts it, too much knowledge for the sceptic side. The problem was not how to establish the reality, but how to ascertain the origin and possible extent of that knowledge. The first to perceive this, the first to evolve criticism out of scepticism, and therefore the real founder of modern philosophy, was Locke. Nevertheless, even with him, the advantage of studying the more recent in close connexion with the earlier developments of thought does not cease; it only enters on a new phase. If he cannot, like his predecessors, be directly affiliated to one or more of the Greek schools, his position can be illustrated by a parallel derived from the history of those schools. What Arcesilaus and Carneades had been to Socrates and his successors, that Locke was, in a large measure, to Bacon and the Cartesians. He went back to the initial doubt which with them had been overborne by the dogmatic reaction, and insisted on making it a reality. The spirit of the Apologia is absent from Platos later dialogues, only to reappear with even more than its original power in the teaching of the New Academy. And, in like manner, Descartes introspective method, with its demand for clear ideas, becomes, in the Essay concerning Human Understanding, an irresistible solvent for 420the psychologyy and physics of its first propounder. The doctrine of innate ideas, the doctrine that extension is the essence of matter, the doctrine that thought is the essence of mind, the more general doctrine, held also by Bacon, that things have a discoverable essence whence all their properties may be deduced by a process analogous to mathematical reasoning,all collapsed when brought to the test of definite and concrete experience.But when Neo-Platonism, as a literature and a system, had given way to the original authorities from which it was derived, its influence did not, on that account, cease to be felt. In particular, Plotinus gave currency to a certain interpretation of Platos teaching which has been universally352 accepted until a comparatively recent period, perhaps one may say until the time of Schleiermacher. We have seen how many elements of Platonism he left out of sight; and, thanks to his example, followed as it naturally was by Catholic theologians, the world was content to leave them out of sight as well. The charming disciple of Socrates whom we all know and lovethe literary and dramatic artist, the brilliant parodist, the sceptical railleur from the shafts of whose irony even his own theories are not safe, the penetrating observer of human life, the far-seeing critic and reformer of social institutionsis a discovery of modern scholarship. Not as such did the master of idealism appear to Marsilio Ficino and Michael Angelo, to Lady Jane Grey and Cudworth and Henry More, to Berkeley and Hume and Thomas Taylor, to all the great English poets from Spenser to Shelley; not as such does he now appear to popular imagination; but as a mystical enthusiast, a dreamer of dreams which, whether they be realised or not in some far-off sphere, are, at any rate, out of relation to the world of sensuous experience and everyday life. So absolute, indeed, is the reaction from this view that we are in danger of rushing to the contrary extreme, of forgetting what elements of truth the Plotinian interpretation contained, and substituting for it an interpretation still more one-sided, still more inadequate to express the scope and splendour of Platos thoughts. Plato believed in truth and right and purity, believed in them still more profoundly than Plotinus; and his was a more effectual faith precisely because he did not share the sterile optimism of his Alexandrian disciple, but worked and watched for the realisation of what, as yet, had never been realised.523
THREE:2. Drawings in true elevation or in section are based upon flat planes, and give dimensions parallel to the planes in which the views are taken.Again, Plato is false to his own rule when he selects his philosophic governors out of the military caste. If the same individual can be a warrior in his youth and an administrator255 in his riper years, one man can do two things well, though not at the same time. If the same person can be born with the qualifications both of a soldier and of a politician, and can be fitted by education for each calling in succession, surely a much greater number can combine the functions of a manual labourer with those of an elector. What prevented Plato from perceiving this obvious parallel was the tradition of the paterfamilias who had always been a warrior in his youth; and a commendable anxiety to keep the army closely connected with the civil power. The analogies of domestic life have also a great deal to do with his proposed community of women and children. Instead of undervaluing the family affections, he immensely overvalued them; as is shown by his supposition that the bonds of consanguinity would prevent dissensions from arising among his warriors. He should have known that many a home is the scene of constant wrangling, and that quarrels between kinsfolk are the bitterest of any. Then, looking on the State as a great school, Plato imagined that the obedience, docility, and credulity of young scholars could be kept up through a lifetime; that full-grown citizens would swallow the absurdest inventions; and that middle-aged officers could be sent into retirement for several years to study dialectic. To suppose that statesmen must necessarily be formed by the discipline in question is another scholastic trait. The professional teacher attributes far more practical importance to his abstruser lessons than they really possess. He is not content to wait for the indirect influence which they may exert at some remote period and in combination with forces of perhaps a widely different character. He looks for immediate and telling results. He imagines that the highest truth must have a mysterious power of transforming all things into its own likeness, or at least of making its learners more capable than other men of doing the worlds work. Here also Plato, instead of being too logical, was not logical256 enough. By following out the laws of economy, as applied to mental labour, he might have arrived at the separation of the spiritual and temporal powers, and thus anticipated the best established social doctrine of our time.
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