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, for the one concept of Parmenides. The ideas thus acquired what is called metaphysical subsistence; for they stood in the place of the Eleatic Absolute, and at the same time were the realities that phenomena manifested.

The technique of this combination is much to be admired; but the feat is technical and adds nothing to the significance of what Plato has to say on any concrete subject. This barren triumph was, however, fruitful in misunderstandings. The characters and values a thing possessed were now conceived to subsist apart from it, and might even have preceded it and caused its existence; a mechanism composed of values and definitions could thus be placed behind phenomena to constitute a substantial physical world. Such a dream could not be taken seriously, until good sense was wholly lost and a bevy of magic spirits could be imagined peopling the infinite and yet carrying on the business of earth. Aristotle rejected the metaphysical subsistence of ideas, but thought they might still be essences operative in nature, if only they were identified with the life or form of particular things. The dream thus lost its frank wildness, but none of its inherent incongruity: for the sense in which characters and values make a thing what it is, is purely dialectical. They give it its status in the ideal world; but the appearance of these characters and values here and now is what needs explanation in physics, an explanation which can be