Bearing then this in mind, that intelligence is a self-development, not a quality supervening to a substance, we may abstract from all degree, and for the purpose of philosophic construction reduce it to kind, under the idea of an indestructible power with two opposite and counteracting forces, which by a metaphor borrowed from astronomy, we may call the centrifugal and centripetal forces. The intelligence in the one tends to objectize itself, and in the other to know itself in the object. It will be hereafter my business to construct by a series of intuitions the progressive schemes, that must follow from such a power with such forces, till I arrive at the fulness of the human intelligence. For my present purpose, I assume such a power as my principle, in order to deduce from it a faculty, the generation, agency, and application of which form the contents of the ensuing chapter. In a preceding page I have justified the use of technical terms in philosophy, whenever they tend to preclude confusion of thought, and when they assist the memory by the exclusive singleness of their meaning more than they may, for a short time, bewilder the attention by their strangeness. I trust, that I have not extended this privilege beyond the grounds on which I have claimed it; namely, the conveniency of the scholastic phrase to distinguish the kind from all degrees, or rather to express the kind with the abstraction of degree, as for instance multeity instead of multitude; or secondly, for the sake of correspondence in sound in interdependent or antithetical terms, as subject and object; or lastly, to avoid the wearying recurrence of circumlocutions and definitions. Thus I shall venture to use potence, in order to express a specific degree of a power, in imitation of the Algebraists. I have even hazarded the new verb potenziate, with its derivatives, in order to express the combination or transfer of powers. It is with new or unusual terms, as with privileges in courts of justice or legislature; there can be no legitimate privilege, where there already exists a positive law adequate to the purpose; and when there is no law in existence, the privilege is to be justified by its accordance with the end, or final cause, of all law. Unusual and new-coined words are doubtless an evil; but vagueness, confusion, and imperfect conveyance of our thoughts, are a far greater. Every system, which is under the necessity of using terms not familiarized by the metaphysics in fashion, will be described as written in an unintelligible style, and the author must expect the charge of having substituted learned jargon for clear conception; while, according to the creed of our modern philosophers, nothing is deemed a clear conception, but what is representable by a distinct image. Thus the conceivable is reduced within the bounds of the picturable. Hinc patet, qui fiat, ut cum irrepraesentabile et impossibile vulgo ejusdem significatus habeantur,