ii. Imitation provided the first material of language: but it was “without form and void.” During how many years or hundreds or thousands of years the imitative or half-articulate stage continued there is no possibility of determining. But we may reasonably conjecture that there was a time when the vocal utterance of man was intermediate between what we now call language and the cry of a bird or animal. Speech before language was a rudis indigestaque materies, not yet distributed into words and sentences, in which the cry of fear or joy mingled with more definite sounds recognized by custom as the expressions of things or events. It was the principle of analogy which introduced into this “indigesta moles” order and measure. It was Anaxagoras’ omou panta chremata, eita nous elthon diekosmese: the light of reason lighted up all things and at once began to arrange them. In every sentence, in every word and every termination of a word, this power of forming relations to one another was contained. There was a proportion of sound to sound, of meaning to meaning, of meaning to sound. The cases and numbers of nouns, the persons, tenses, numbers of verbs, were generally on the same or nearly the same pattern and had the same meaning. The sounds by which they were expressed were rough-hewn at first; after a while they grew more refined—the natural laws of euphony began to affect them. The rules of syntax are likewise based upon analogy. Time has an analogy with space, arithmetic with geometry. Not only in musical notes, but in the quantity, quality, accent, rhythm of human speech, trivial or serious, there is a law of proportion. As in things of beauty, as in all nature, in the composition as well as in the motion of all things, there is a similarity of relations by which they are held together. It would be a mistake to suppose that the analogies of language are always uniform: there may be often a choice between several, and sometimes one and sometimes another will prevail. In Greek there are three declensions of nouns; the forms of cases in one of them may intrude upon another. Similarly verbs in -omega and -mu iota interchange forms of tenses, and the completed paradigm of the verb is often made up of both. The same nouns may be partly declinable and partly indeclinable, and in some of their cases may have fallen out of use. Here are rules with exceptions; they are not however really exceptions, but contain in themselves indications of other rules. Many of these interruptions or variations of analogy occur in pronouns or in the verb of existence of which the forms were too common and therefore too deeply imbedded in language entirely to drop out. The same verbs in the same meaning may sometimes take one case, sometimes another. The participle may also have the character of an adjective, the adverb either of an adjective or of a preposition. These exceptions are as regular as the rules, but the causes of them are seldom known to us.