utterly fictitious, or nothing but metaphysical entities, or universals which we are in the habit of forming from particulars. Will and intellect are thus supposed to stand to this or that idea, this or that volition, in the same way as stoniness to this or that stone, or as man to Peter or Paul.” They are supposed to be a general something which gets defined and detached. But, in the mind, or in the cogitant soul, there are no such things. There are only ideas: and by an “idea” we are to understand not an image on the retina or in the brain, not a “dumb something, like a painting on a panel(39),” but a mode of thinking, or even the act of intellection itself. The ideas _are_ the mind: mind does not _have_ ideas. Further, every “idea,” as such, “involves affirmation or negation,”—is not an image, but an act of judgment—contains, as we should say, an implicit reference to actuality,—a reference which in volition is made explicit. Thus (concludes the corollary of Eth. ii. 49) “Will and Intellect are one and the same.” But in any case the “faculties” as such are no better than _entia rationis_ (i.e. auxiliary modes of representing facts). Leibniz speaks no less distinctly and sanely in this direction. “True powers are never mere possibilities: they are always tendency and action.” The “Monad”—that is the quasi-intelligent unit of existence,—is essentially activity, and its actions are perceptions and appetitions, i.e. tendencies to pass from one perceptive state or act to another. It is out of the variety, the complication, and relations of these miniature or little perceptions and appetitions, that the conspicuous phenomena of consciousness are to be explained, and not by supposing them due to one or other faculty. The soul is a unity, a self-developing unity, a unity which at each stage of its existence shows itself in a perception or idea,—each such perception however being, to repeat the oft quoted phrase, _plein de l’avenir et chargé du passé_:—each, in other words, is not stationary, but active and urgent, a progressive force, as well as a representative element. Above all, Leibniz has the view that the soul gives rise to all its ideas from itself: that its life is its own production, not a mere inheritance of ideas which it has from birth and nature, nor a mere importation into an empty room from without, but a necessary result of its own constitution acting in necessary (predetermined) reciprocity and harmony with the rest of the universe.