merely concurrent and antagonistic motions in space, but which is able so to adjust these concurrences and antagonisms as to construct agencies which shall realize designs--a force, therefore, which is thoughtful and percipient: in one word, intelligent--a force, in fine, which is not a mere mechanical dynamism in space and time, but a true Power existing in its type and fullness: in one word--God.[38] Thus does all reflective thought, whether directed to the phenomena of the human mind or the phenomena of nature, confirm the _à priori_ intuition of an unconditioned Will unfolding itself in Thought and Power, and completing itself in a harmonious Totality, as the First Principle and Originative Cause of all existences and of all relations, of all individual beings, and of that harmonious whole men call the Cosmos. And now we pass to the important question--How are we to bring all our acquired conceptions of God into harmony with this fundamental idea? Assuming that we have certain conceptions of God which are derived from verbal instruction, and ultimately from Divine revelation, can we bring these into unity under this First Principle? Or, in other words, can we logically evolve the attributes and perfections of God out of this fundamental Idea, and find the result in harmony with the Christian doctrine? As the object of thought, even of Christian thought, God must necessarily be conceived by us under the fundamental categories of _Being_, _Attribute_, and _Relation_. All objects of thought must come under these categories, and out of or beyond these categories we can not think at all. Furthermore, we can not think of God as the unconditioned Being conditioning Himself, without conceiving Him as _Reality_, _Efficiency_, and _Personality_. These constitute the conception of the Divine essence whereby it is what it is. When we think of the Attributes of such a Being, we must necessarily conceive them as _Absolute_, _Infinite_, and _Perfect_.[39] And when we think of the Relations of God to finite existences and finite consciousness, we are constrained to regard Him as the _Ground_ and _Cause_ and _Reason_ of all dependent being. In the unity and completeness of this categorical scheme of thought, we can not fail to recognize the following logical order: BEING (Essentia) REALITY } EFFICIENCY } PERSONALITY } ATTRIBUTE (Related Essence) ABSOLUTE } INFINITE } PERFECT } RELATION (Free Determination) GROUND CAUSE REASON OR END In the Absolute Reality we have the ultimate ground; in the Infinite Efficiency we have the adequate cause; and in the Perfect Personality we have the sufficient reason or final cause of all existence.