In the first exhibition of the sounds of a living language, by alphabetical characters, it is probable that the principle which regulated the system of orthography was, that every elementary sound should be represented by a corresponding character, either simple or compounded, and that the same sound should be represented by the same character. If different sounds were represented by the same letter; if the same sound were represented by different letters; if more letters were employed then were necessary to exhibit the sound; or if any sound were not represented by a corresponding character; then the _written_ language would not be an adequate representation of the _spoken_. It is hardly to be supposed that, in the first rude attempts at alphabetical writing, the principle above laid down could be strictly and uniformly followed. And though it had, yet, in the course of a few generations, many causes would occur to bring about considerable departures from it. A gradual refinement of ear, and increasing attention to _euphonia_; contractions and elisions brought into vogue by the carelessness or the rapidity of colloquial speech, or by the practice of popular speakers; above all, the mixture of the speech of different nations would introduce numberless varieties into the pronunciation. Still, those who wrote the language might choose to adhere to the original orthography for the sake of retaining the radical parts, and preserving the etymon of vocables undisguised, and for maintaining an uniformity in the mechanism of the inflections. Hence the pronunciation and the orthography would disagree in many instances, till at length it would be found expedient to alter the orthography, and to adapt it to such changes in the speech or spoken language as long use had established, in order to maintain what was most necessary of all, a due correspondence between the mode of speaking and the mode of writing the same language.
It will probably be found on inquiry that in all languages when the _speech_ has undergone material and striking changes, { 24} the _written language_ also has varied in a considerable degree in conformity to these changes, but that it has not scrupulously kept pace with the spoken language in every smaller variation. The written language of the Greeks suffered many changes between the time that the old Pelasgic was spoken and the days of Demosthenes. The various modes of pronunciation used in the different districts of Greece are marked by a diversity in the orthography of the written language. The writing of the Latin underwent considerable alterations between the era of the _Decemviri_ and the Augustan age, corresponding, no doubt, to the changes which had taken place during that interval in speaking the Latin. English and French books printed within the last century exhibit a mode of orthography very different from what is found in books printed two or three hundred years ago. These instances show the tendency which the written language has to follow the lead of the spoken language, and to maintain a certain degree of conformity to those modes of pronunciation which are from time to time adopted by those who speak it.