It was not only the Pythagoreans and Plato then, that concealed many things; but the Epicureans too say that they have things that may not be uttered, and do not allow all to peruse those writings. The Stoics also say that by the first Zeno things were written which they do not readily allow disciples to read, without their first giving proof whether or not they are genuine philosophers. And the disciples of Aristotle say that some of their treatises are esoteric, and others common and exoteric. Further, those who instituted the mysteries, being philosophers, buried their doctrines in myths, so as not to be obvious to all. Did they then, by veiling human opinions, prevent the ignorant from handling them; and was it not more beneficial for the holy and blessed contemplation of realities to be concealed? But it was not only the tenets of the Barbarian philosophy, or the Pythagorean myths. But even those myths in Plato (in the Republic, that of Hero the Armenian; and in the Gorgias, that of Æacus and Rhadamanthus; and in the Phædo, that of Tartarus; and in the Protagoras, that of Prometheus and Epimetheus; and besides these, that of the war between the Atlantini and the Athenians in the Atlanticum) are to be expounded allegorically, not absolutely in all their expressions, but in those which express the general sense. And these we shall find indicated by symbols under the veil of allegory. Also the association of Pythagoras, and the twofold intercourse with the associates which designates the majority, hearers (ἀκουσματικοί), and the others that have a genuine attachment to philosophy, disciples (μαθηματικοί), yet signified that something was spoken to the multitude, and something concealed from them. Perchance, too, the twofold species of the Peripatetic teaching—that called probable, and that called knowable—came very near the distinction between opinion on the one hand, and glory and truth on the other.