"But it is time to tell the truth; though it requires some courage to avow it in an age and country in which disquisitions on all subjects not privileged to adopt technical terms or scientific symbols, must be addressed to the public. I say, then, that it is neither possible nor necessary for all men, nor for many, to be philosophers. There is a philosophic consciousness which lies beneath or (as it were) behind the spontaneous consciousness natural to all reflecting beings. As the elder Romans distinguished their northern provinces into Cis-Alpine and Trans-Alpine, so may we divide all the objects of human knowledge into those on this side and those on the other side of the spontaneous consciousness. The latter is exclusively the domain of pure philosophy, which is therefore properly entitled _transcendental_, in order to discriminate it at once, both from mere reflection and _re_-presentation on the one hand, and on the other from those flights of lawless speculation which, abandoned by _all_ distinct consciousness, because transgressing the bounds and purposes of our intellectual faculties, are justly condemned as _transcendent_. "The first range of hills that encircles the scanty vale of human life is the horizon for the majority of its inhabitants. On its ridges the sun is born and departs. From them the stars rise, and touching them they vanish. By the many, even this range, the natural limit and bulwark of the vale, is but imperfectly known. Its higher ascents are too often hidden in mists and clouds from uncultivated swamps which few have courage or curiosity to penetrate. To the multitude below these vapors appear, now as the dark haunts of terrific agents, on which none may intrude with impunity; and now all aglow, with colors not their own, they are gazed at as the splendid palaces of happiness and power. But in all ages there have been a few who, measuring and sounding the rivers of the vale at the feet of their farthest inaccessible falls, have learned that the sources must be far higher and far inward; a few who, even in the level streams, have detected elements which neither the vale itself nor the surrounding mountains contained or could supply. How and whence to these thoughts, these strong probabilities, the ascertaining vision, the intuitive knowledge may finally supervene, can be learned only by the fact. I might oppose to the question the words with which Plotinus supposes Nature to answer a similar difficulty: 'Should any one interrogate her how she works, if graciously she vouchsafe to listen and speak, she will reply, it behooves thee not to disquiet me with interrogatories, but to understand in silence, even as I am silent, and work without words.'