concerned, and not with the talent of Lysis which had made it known. The disciples of a great man had no other name than his. All their works were attributed to him. This is an observation sufficiently important to make and which explains how Vyasa in India, Hermes in Egypt, Orpheus in Greece, have been the supposed authors of such a multitude of books that the lives of many men would not even suffice to read them. In my translation, I have followed the Greek text, such as is cited at the head of the Commentary of Hierocles, commentated on by the son of Casaubon, and interpreted into Latin by J. Curterius; London edition, 1673. This work, like all those which remain to us of the ancients, has been the subject of a great many critical and grammatical discussions: in the first place one must before everything else be assured of the material part. This part is today as authentic and as correct as it is possible to be, and although there exists still, several different readings, they are of too little importance for me to dwell upon. It is not my affair and besides, _chacun doit faire son métier_. That of the grammarian has ended where it ought to end. For how can man ever expect to advance if he never is willing to try some new thing which is offered. I shall not therefore make any criticizing remarks concerning the text, for I consider this text sufficiently examined; neither will I make any notes concerning the Commentaries, properly so-called, on these seventy-one lines, for I think it is sufficient having those of Hierocles, of Vitus Amerbachius, Theodore Marcilius, Henri Brem, Michel Neander, Jean Straselius, Guilhaume Diezius, Magnus-Daniel Omeis, André Dacier, etc. As I stated, I shall make examinations rather than commentaries, and I will give, regarding the inner meaning of the Verses, all the explanations that I believe useful for their complete development. PREPARATION 2. _Render to the Immortal Gods the consecrated cult; Guard then thy faith_: