I shall here take the liberty for a moment, of considering the difficulties of the origin of languages, on which subject I might content myself with a simple repetition of the Abbé Condillac's investigations, as they fully confirm my system, and perhaps even first suggested it. But it is plain, from the manner in which this philosopher solves the difficulties he himself raises, concerning the origin of arbitrary signs, that he assumes what I question, viz. that a kind of society, must already have existed among the first inventors of language. While I refer, therefore, to his observations on this head, I think it right to give my own, in order to exhibit the same difficulties in a light adapted to my subject. The first which presents itself is to conceive how language can have become necessary; for as there was no communication among men and no need for any, we can neither conceive the necessity of this invention, nor the possibility of it, if it was not somehow indispensable. I might affirm, with many others, that languages arose in the domestic intercourse between parents and their children. But this expedient would not obviate the difficulty, and would besides involve the blunder made by those who, in reasoning on the state of nature, always import into it ideas gathered in a state of society. Thus they constantly consider families as living together under one roof, and the individuals of each as observing among themselves a union as intimate and permanent as that which exists among us, where so many common interests unite them: whereas, in this primitive state, men had neither houses, nor huts, nor any kind of property whatever; every one lived where he could, seldom for more than a single night; the sexes united without design, as accident, opportunity or inclination brought them together, nor had they any great need of words to communicate their designs to each other; and they parted with the same indifference. The mother gave suck to her children at first for her own sake; and afterwards, when habit had made them dear, for theirs: but as soon as they were strong enough to go in search of their own food, they forsook her of their own accord; and, as they had hardly any other method of not losing one another than that of remaining continually within sight, they soon became quite incapable of recognising one another when they happened to meet again. It is farther to be observed that the child, having all his wants to explain, and of course more to say to his mother than the mother could have to say to him, must have borne the brunt of the task of invention, and the language he used would be of his own device, so that the number of languages would be equal to that of the individuals speaking them, and the variety would be increased by the vagabond and roving life they led, which would not give time for any idiom to become constant. For to say that the mother dictated to her child the words he was to use in