FORE:Nevertheless, by dint of pertinacious repetition, the founder of Neo-Platonism has succeeded in making the main outlines, and to a great extent the details, of his system so perfectly clear that probably no philosophy is now better understood than his. In this respect, Plotinus offers a remarkable contrast to the two great thinkers from whom his ideas are principally derived. While Plato and Aristotle construct each particular sentence with masterly clearness, the general drift of their speculations is by no means easy to ascertain; and, even now, critics take diametrically opposite views of the interpretation which is to be put on their teaching with regard to several most important points. The expositors of Neo-Platonism, on the contrary, show a rare unanimity in their accounts of its constitutive principles. What they differ about is its origin and its historical significance. And these are points on which we too shall have to enter, since all the ancient systems are interesting to us chiefly as historical phenomena, and Neo-Platonism more so than any other. Plotinus285 effected a vast revolution in speculative opinion, but he effected it by seizing on the thoughts of others rather than by any new thoughts or even new developments or applications of his own.Chapter 4
FORE:
FORE:
THREE:The Platonic influence told even more efficaciously on Galileos still greater contemporary, Kepler. With him as with the author of the Republic, mysticism took the direction of seeking everywhere for evidence of mathematical proportions. With what brilliant success the search was attended, it is needless to relate. What interests us here is the fact, vouched for by Arago, that the German astronomer was guided by an idea of Platos, that the world must have been created on geometrical principles.552 Had Bacon known anything about the work on which his adventurous contemporary was engaged, we may be sure that it would have afforded him another illustration for his Id?la, the only difficulty being whether it should be referred to the illusions of the Tribe, the Den, or the Theatre.
THREE:Whyuhhello, Jeff!
