It is not till within five or six years that MSS. of these letters have become more common; and there is reason to believe that they are now considerably multiplied, since the copy from which this edition is printed has been revised and corrected by collation with six others, that have been collected without any great difficulty. Unhappily, all these copies swarm with faults, which corrupt the sense, and comprehend many variations, but which also, to use the language of the Biblical critics, have served sometimes to discover and to fix the true reading! More often, however, they have rendered it more uncertain than it was before what one ought to be followed--a new proof of the multiplicity of copies, because the more numerous are the manuscripts of a work, the more they differ from each other, as any one may be fully convinced by consulting those of the _Letter of Thrasybulus to Leucippus_, and the various readings of the New Testament collected by the learned Mill, and which amount to more than thirty thousand. However this may be, we have spared no pains to reëstablish the text in all its purity; and we venture to say, that, with the exception of four or five passages, which we found corrupted in all the manuscripts that we had an opportunity to collate, and which we have amended to the best of our ability, the edition of these letters that we now offer to the reader will probably conform almost exactly with the original manuscript of the author. With regard to the author's name and quality we can offer nothing but conjectures. The only particulars of his life upon which there is a general agreement are, that he lived upon terms of great intimacy with the Marquis de la Fare, the Abbé de Chaulieu, the Abbé Terrasson, Fontenelle, M. de Lasseré, &c. The late MM. Du Marsais and Falconnet have often been heard to declare that these letters were composed by some one belonging to the school of Seaux. All that we can pronounce with certainty is the fact, that it is only necessary to read the work to be entirely convinced the author was a man of extensive knowledge, and one who had meditated profoundly concerning the matters upon which he has treated. His style is clear, simple, easy, and in which we may remark a certain urbanity, that leads us to be sure that he was not an obscure individual, nor one to whom good company and polished society were unfamiliar. But what especially distinguishes this work, and which should endear it to all good and virtuous people, is the signal honesty which pervades and characterizes it from the very beginning to the end. It is impossible to read it without conceiving the highest idea of the author's probity, whoever he may have been--without desiring to have had him for a friend, to have lived with him, and, in a word, without rendering justice to the rectitude of his intentions, even when we do not approve of his sentiments. The love of virtue, universal benevolence, respect to the