After a while the word gathers associations, and has an independent existence. The imitation of the lion's roar calls up the fears and hopes of the chase, which are excited by his appearance. In the moment of hearing the sound, without any appreciable interval, these and other latent experiences wake up in the mind of the hearer. Not only does he receive an impression, but he brings previous knowledge to bear upon that impression. Necessarily the pictorial image becomes less vivid, while the association of the nature and habits of the animal is more distinctly perceived. The picture passes into a symbol, for there would be too many of them and they would crowd the mind; the vocal imitation, too, is always in process of being lost and being renewed, just as the picture is brought back again in the description of the poet. Words now can be used more freely because there are more of them. What was once an involuntary expression becomes voluntary. Not only can men utter a cry or call, but they can communicate and converse; they can not only use words, but they can even play with them. The word is separated both from the object and from the mind; and slowly nations and individuals attain to a fuller consciousness of themselves.
Parallel with this mental process the articulation of sounds is gradually becoming perfected. The finer sense detects the differences of them, and begins, first to agglomerate, then to distinguish them. Times, persons, places, relations of all kinds, are expressed by modifications of them. The earliest parts of speech, as we may call them by anticipation, like the first utterances of children, probably partook of the nature of interjections and nouns; then came verbs; at length the whole sentence appeared, and rhythm and metre followed. Each stage in the progress of language was accompanied by some corresponding stage in the mind and civilisation of man. In time, when the family became a nation, the wild growth of dialects passed into a language. Then arose poetry and literature. We can hardly realize to ourselves how much with each improvement of language the powers of the human mind were enlarged; how the inner world took the place of outer; how the pictorial or symbolical or analogical word was refined into a notion; how language, fair and large and free, was at last complete.
So we may imagine the speech of man to have begun as with the cries of animals, or the stammering lips of children, and to have attained by degrees the perfection of Homer and Plato. Yet we are far from saying that this or any other theory of language is proved by facts. It is not difficult to form an hypothesis which by a series of imaginary transitions will bridge over the chasm which separates man from the animals. Differences of kind may often be thus resolved into differences of degree. But we must not assume that we have in this way discovered the true account of them. Through what struggles the harmonious use of the organs of speech was acquired; to what extent the conditions of human life were different; how far the genius of individuals may have contributed to the discovery of this as of the other arts, we cannot say: Only we seem to see that language is as much the creation of the ear as of the tongue, and the expression of a movement stirring the hearts not of one man only but of many, 'as the trees of the wood are stirred by the wind.' The theory is consistent or not inconsistent with our own mental experience, and throws some degree of light upon a dark corner of the human mind.
In the later analysis of language, we trace the opposite and contrasted elements of the individual and nation, of the past and present, of the inward and outward, of the subject and object, of the notional and relational, of the root or unchanging part of the word and of the changing inflexion, if such a distinction be admitted, of the vowel and the consonant, of quantity and accent, of speech and writing, of poetry and prose. We observe also the reciprocal influence of sounds and conceptions on each other, like the connexion of body and mind; and further remark that although the names of objects were originally proper names, as the grammarian or logician might call them, yet at a later stage they become universal notions, which combine into particulars and individuals, and are taken out of the first rude agglomeration of sounds that they may be replaced in a higher and more logical order. We see that in the simplest sentences are contained grammar and logic—the parts of speech, the Eleatic philosophy and the Kantian categories. So complex is language, and so expressive not only of the meanest wants of man, but of his highest thoughts; so various are the aspects in which it is regarded by us. Then again, when we follow the history of languages, we observe that they are always slowly moving, half dead, half alive, half solid, half fluid; the breath of a moment, yet like the air, continuous in all ages and countries,—like the glacier, too, containing within them a trickling stream which deposits debris of the rocks over which it passes. There were happy moments, as we may conjecture, in the lives of nations, at which they came to the birth—as in the golden age of literature, the man and the time seem to conspire; the eloquence of the bard or chief, as in later times the creations of the great writer who is the expression of his age, became impressed on the minds of their countrymen, perhaps in the hour of some crisis of national development—a migration, a conquest, or the like. The picture of the word which was beginning to be lost, is now revived; the sound again echoes to the sense; men find themselves capable not only of expressing more feelings, and describing more objects, but of expressing and describing them better. The world before the flood, that is to say, the world of ten, twenty, a hundred thousand years ago, has passed away and left no sign. But the best conception that we can form of it, though imperfect and uncertain, is gained from the analogy of causes still in action, some powerful and sudden, others working slowly in the course of infinite ages. Something too may be allowed to 'the persistency of the strongest,' to 'the survival of the fittest,' in this as in the other realms of nature.
These are some of the reflections which the modern philosophy of language suggests to us about the powers of the human mind and the forces and influences by which the efforts of men to utter articulate sounds were inspired. Yet in making these and similar generalizations we may note also dangers to which we are exposed. (1) There is the confusion of ideas with facts—of mere possibilities, and generalities, and modes of conception with actual and definite knowledge. The words 'evolution,' 'birth,' 'law,' development,' 'instinct,' 'implicit,' 'explicit,' and the like, have a false clearness or comprehensiveness, which adds nothing to our knowledge. The metaphor of a flower or a tree, or some other work of nature or art, is often in like manner only a pleasing picture. (2) There is the fallacy of resolving the languages which we know into their parts, and then imagining that we can discover the nature of language by reconstructing them. (3) There is the danger of identifying language, not with thoughts but with ideas. (4) There is the error of supposing that the analysis of grammar and logic has always existed, or that their distinctions were familiar to Socrates and Plato. (5) There is the fallacy of exaggerating, and also of diminishing the interval which separates articulate from inarticulate language—the cries of animals from the speech of man—the instincts of animals from the reason of man. (6) There is the danger which besets all enquiries into the early history of man—of interpreting the past by the present, and of substituting the definite and intelligible for the true but dim outline which is the horizon of human knowledge.
The greatest light is thrown upon the nature of language by analogy. We have the analogy of the cries of animals, of the songs of birds ('man, like the nightingale, is a singing bird, but is ever binding