As all the same relations which subsist between single, may likewise subsist between numerous objects, it is evident there would be occasion for the same number of cases in the dual and in the plural, as in the singular number. Hence the intricacy and complexness of the declensions in all the ancient languages. In the Greek there are five cases in each of the three numbers, consequently fifteen in all. As nouns adjective, in the ancient languages, varied their terminations according to the gender of the substantive to which they were applied, so did they likewise, according to the case and the number. Every noun adjective in the Greek language, therefore, having three genders, and three numbers, and five cases in each number, may be considered as having five and forty different variations. The first formers of language seem to have varied the termination of the adjective, according to the case and the number of the substantive, for the same reason which made them vary according to the gender; the love of analogy, and of a certain regularity of sound. In the signification of adjectives there is neither case nor number, and the meaning of such words is always precisely the same, notwithstanding all the variety of termination under which they appear. _Magnus vir_, _magni viri_, _magnorum virorum_; _a great man_, _of a great man_, _of great men_ in all these expressions the words _magnus_, _magni_, _magnorum_, as well as the word _great_, have precisely one and the same signification, though the substantives to which they are applied have not. The difference of termination in the noun adjective is accompanied with no sort of difference in the meaning. An adjective denotes the qualification of a noun substantive. But the different relations in which that noun substantive may occasionally stand, can make no sort of difference upon its qualification. If the declensions of the ancient languages are so very complex, their conjugations are infinitely more so. And the complexness of the one is founded upon the same principle with that of the other, the difficulty of forming, in the beginnings of language, abstract and general terms. Verbs must necessarily have been coeval with the very first attempts towards the formation of language. No affirmation can be expressed without the assistance of some verb. We never speak but in order to express our opinion that something either is or is not. But the word denoting this event, or this matter of fact, which is the subject of our affirmation, must always be a verb.