This last, the Reflective or Reciprocal Locution, is the grammatical type and illustration of Kant's third subdivision of the Group of Relation, that, namely, which he denominates RECIPROCAL ACTION. The correspondences between Language and the Universe at large are here too obvious to require to be enlarged or insisted upon. The Active Voice in Grammar repeats the World of Direct Actions; the Passive Voice, the World of Inverse Actions; and the Middle Voice the World of Reciprocal Actions, in the Universe at large. The Nominative Case (in the first and leading of these Locutions) is the Analogue of Cause, and the Verb, of Dependence, or the Chain of Effects resulting from the Cause. The I, the Me, the EGO, as Subject, in the domain of Philosophy, is first Subject (-ed) under Impression from the world without, and afterward becomes Cause (in Expression); and the term Subject has here, therefore, precisely the same ambiguity as in Grammar, and stands contrasted in the same way with the word Object; the Accusative Case of the old Grammarians being now called the _Objective_ Case, and denoting that upon which the force of the (direct) action is expended. The Middle Voice becomes, by an elision, the Neuter Verb. I walk, means, I walk _myself_. Neuter Verbs fall, then, into the Category of Reciprocal Action. The Typical Neuter Verb, the Typical Verb, in fine, of all verbs, is the Substantive or Copula Verb TO BE, the Verb of Existence or Being. _I am_, means, I am _myself_, or, I keep or hold myself in being. In strictness, the verb _to be_ is the ONLY VERB. Every other Verb is capable of Solution into this one, accompanied by a Participle; thus, _I walk_, becomes, _I am_ WALKING, etc. By this analysis, the Verb, as such, falls back among words of Relation, or mere Connectives. It may then be classed with Prepositions and Conjunctions; its office of Connection being still peculiar, however, namely, to intervene between the Subject and the Predicate. Participles, into which all other verbs than this _Copula_, are so resolved, then fall back in like manner into the Class of Adjectives. The Tempic and Motic Word-Kingdom is thus carried back to its dependence upon the Spacic and Static Word-Kingdom, as basis; in the same manner as, in Nature, Time and Motion have Space and Rest for their perpetual background. Reduced to this degree of simplicity, there are but three Parts of Speech: 1. Substantives; 2. Attributes; and 3. Words of Relation; which correspond with 1. Things; 2. Properties of Things; and 3. The Interrelationship of Things, of Properties, and of Things and their Properties, in the Universe at large.