according to them, is the Father and Author of all things, then it is both equal in honour and related to the rest of the Æons, perchance even more ancient than they are. Moreover, if it proceeded from the same source [as they did], it must be similar in nature to Him who produced it, as well as to those along with whom it was produced. There will therefore be an absolute necessity, both that the Bythus of whom they speak, along with Sige, be similar in nature to a vacuum, that is, that He really is a vacuum; and that the rest of the Æons, since they are the brothers of vacuity, should also be devoid[1] of substance. If, on the other hand, it has not been thus produced, it must have sprung from and been generated by itself, and in that case it will be equal in point of age to that Bythus who is, according to them, the Father of all; and thus vacuity will be of the same nature and of the same honour with Him who is, according to them, the universal Father. For it must of necessity have been either produced by some one, or generated by itself, and sprung from itself. But if, in truth, vacuity was produced, then its producer Valentinus is also a vacuum, as are likewise his followers. If, again, it was not produced, but was generated by itself, then that which is really a vacuum is similar to, and the brother of, and of the same honour with, that Father who has been proclaimed by Valentinus; while it is more ancient, and dating its existence from a period greatly anterior, and more exalted in honour than the remaining Æons of Ptolemy himself, and Heracleon, and all the rest[2] who hold the same opinions.
2. But if, driven to despair in regard to these points, they confess that the Father of all contains all things, and that there is nothing whatever outside of the Pleroma (for it is an absolute necessity that, [If there be anything outside of it,] it should be bounded and circumscribed by something
