Among the first series, you have the Pantheistic schools and personalities of the decaying Roman Empire, Plotinus the Ecstatic, and Jamblichus, and such other dreamers, straining up into the blue; the somewhat similar, largely subterranean, Jewish and Christian sects and tendencies of the Middle Ages; the Anabaptist and other like groups, individualistic, fantastic, in considerable part anomistic and revolutionary, of the Reformation period; and such phenomena as the Eternal-Gospel troubles and the Quietistic controversy in the Roman Church. And above all, in the East, we have, from time immemorial, whole races, (in the midst of a world crying aloud for help and re-fashioning, but which is left to stagnate and decay,) still dreaming away their lives in Buddhistic abstraction and indifference. Among the second, the light, clear series, you have whole races, the luminous, plastic, immensely active Greek, the strong-willed, practical, organizing Roman, and the Anglo-Saxon determined “to stand no nonsense”; you have an Aristotle, sober, systematic; one side at least of the great Mediaeval Scholastic movement, culminating in St. Thomas, so orderly and transparent; above all, modern Physical Science, first subjecting all phenomena to rigorous quantitative and mathematical analysis and equation, and then reacting upon philosophy as well, and insisting, there and everywhere, upon clearness, direct comparableness, ready transferableness of ideas and their formulae, as the sole tests of truth. Descartes; Kepler, Galileo; Hobbes, Spinoza are, in increasing degrees, still perhaps the most perfect types of this clear and cool, this ultimately mathematical and Monistic tendency and position. 6. _The dark, intuitive personalities and schools, apparently a mere stop-gap, transition, or reaction against the clear, discursive ones._