I have not done with the root _nĕ_. I might go on and show you how it is at the base of the demonstrative pronouns, this, that, those, in Delaware; how it is the radical of the words for thinking, reflecting, and meditating; how it also gives rise to words expressing similarity and identity; how it means to be foremost, to stand ahead of others; and finally, how it signifies to come to me, to unify or congregate together. But doubtless I have trespassed on your ears long enough with unfamiliar words. Such suggestions as these will give you some idea of the value of American languages to American ethnology. But I should be doing injustice to my subject were I to confine my arguments in favor of their study to this horizon. If they are essential to a comprehension of the red race, not less so are they to the science of linguistics in general. This science deals not with languages, but with _language_. It looks at the idiom of a nation, not as a dry catalogue of words and grammatical rules, but as the living expression of the thinking power of man, as the highest manifestation of that spiritual energy which has lifted him from the level of the brute, the complete definition of which, in its origin and evolution, is the loftiest aim of universal history. As the intention of all speech is the expression of thought, and as the final purpose of all thinking is the discovery of truth, so the ideal of language, the point toward which it strives, is the absolute form for the realization of intellectual function. In this high quest no tongue can be overlooked, none can be left out of account. One is just as important as another. Goethe once said that he who knows but one language knows none; we may extend the apothegm, and say that so long as there is a single language on the globe not understood and analyzed, the science of language will be incomplete and illusory. It has often proved the case that the investigation of a single, narrow, obscure dialect has changed the most important theories of history. What has done more than anything else to overthrow, or, at least, seriously to shake, the time-honored notion that the White Race first came from Central Asia? It was the study of the Lithuanian dialect on the Baltic Sea, a language of peasants, without literature or culture, but which displays forms more archaic than the Sanscrit. What has led to a complete change of views as to the prehistoric population of Southern Europe? The study of the Basque, a language unknown out of a few secluded valleys in the Pyrenees. There are many reasons why unwritten languages, like those of America, are more interesting, more promising in results, to the student of linguistics than those which for generations have been cast in the conventional moulds of written speech.