Pythagoras was rightly quoted by me. I produce some of his sayings.
39 In order to parry the charge of falsehood, it is your humour to become quite exacting. You are not to be called to produce the six thousand books of Origen, of which you speak; but you expect me to be acquainted with all the records of Pythagoras. What truth is there in all the boastful language, which you blurted out from your inflated cheeks, declaring that you had corrected the Περὶ ᾿Αρχῶν by introducing words which you had read in other books of Origen, and thus had not put in other men's words but restored his own? Out of all this forest of his works you cannot produce a single bush or sucker. You accuse me of raising up smoke and mist. Here you have smoke and mist indeed. You know that I have dissipated and done away with them; but, though your neck is broken, you do not bow it down, but, with an impudence which exceeds even your ignorance, you say that I am denying what is quite evident, so as to excuse yourself, after promising mountains of gold, for not producing even a leatherlike farthing from your treasury. I acknowledge that your animosity against me rests on good grounds, and that your rage and passion is genuine; for, unless I made persistent demands for what does not exist, you would be thought to have what you have not. You ask me for the books of Pythagoras. But who has informed you that any books of his are extant? It is true that in my letter which you criticize these words occur: “Suppose that I erred in youth, and that, having been trained in profane literature, I at the beginning of my Christian course had no sufficient doctrinal knowledge, and that I attributed to the Apostles things which I had read in Pythagoras or Plato or Empedocles;” but I was speaking not of their books but of their tenets, with which I was able to acquaint myself through Cicero, Brutus, and Seneca. Read the short oration for Vatinius, and others in which mention is made of secret societies. Turn over Cicero's dialogues. Search through the coast of Italy which used to be called Magna Græcia, and you will find there various doctrines of Pythagoras inscribed on brass on their public monuments. Whose are those Golden Rules? They are Pythagoras's; and in these all his principles are contained in a summary form. Iamblicus wrote a commentary upon them, following in this, at least partly, Moderatus a man of great eloquence, and Archippus and Lysides who were disciples of Pythagoras. Of these, Archippus and Lysides held schools in Greece, that is, in Thebes; they retained so fully the precepts of their teacher, that they made use of their memory instead of books. One of these precepts is: “We must cast away by any contrivance, and cut out by fire and sword and contrivances of all kinds, disease from the body, ignorance from the soul, luxury from the belly, sedition from the state, discord from the family, excess from all things alike.” There are other precepts of Pythagoras, such as these. “Friends have all things in common.” “A friend is a second self.” “Two moments are specially to be observed, morning and evening: that is, things which we are going to do, and things which we have done.” “Next to God we must worship truth, for this alone makes men akin to God.” There are also enigmas which Aristotle has collated with much diligence in his works: “Never go beyond the Stater,” that is, “Do not transgress the rule of justice;” “Never stir the fire with the sword,” that is, “Do not provoke a man when he is angry and excited with hard words.” “We must not touch the crown,” that is “We must maintain the laws of the state.” “Do not eat out your heart,” that is, “Cast away sorrow from your mind.” “When you have started, do not return,” that is, “After death do not regret this life.” “Do not walk on the public road,” that is, “Do not follow the errors of the multitude.” “Never admit a swallow into the family,” that is, “Do not admit chatterers and talkative persons under the same roof with you.” “Put fresh burdens on the burdened; put none on those who lay them down;” that is, “When men are on the road to virtue, ply them with fresh precepts; when they abandon themselves to idleness, leave them alone.” I said I had read the doctrines of the Pythagoreans. Let me tell you that Pythagoras was the first to discover the immortality of the soul and its transmigration from one body to another. To this view Virgil gives his adherence in the sixth book of the Æneid in these words:
These, when the wheel full thousand years has turned, God calls, a long sad line, in Lethe's stream To drown the past, and long once more to see The skies above, and to the flesh return.
40. Pythagoras taught, accordingly, that he had himself been originally Euphorbus, and then Callides, thirdly Hermotimus, fourthly Pyrrhus, and lastly Pythagoras; and that those things which had existed, after certain revolutions of time, came into being again; so that nothing in the world should be thought of as new. He said that true philosophy was a meditation on death; that its daily struggle was to draw forth the soul from the prison of the body into liberty: that our learning was recollection, and many other things which Plato works out in his dialogues, especially in the Phædo and Timæus. For Plato, after having formed the Academy and gained innumerable disciples, felt that his philosophy was deficient on many points, and therefore went to Magna Græcia, and there learned the doctrines of Pythagoras from Archytas of Tarentum and Timæus of Locris: and this system he embodied in the elegant form and style which he had learned from Socrates. The whole of this, as we can prove, Origen carried over into his book Περὶ ᾿Αρχῶν, only changing the name. What mistake, then, was I making, when I said that in my youth I had imputed to the Apostles ideas which I had found in Pythagoras, Plato and Empedocles? I did not speak, as you calumniously pretend, of what I had read in the books of Pythagoras, Plato and Empedocles, but of what I had read as having existed in their writings, that is, what other men's writings showed me to have existed in them. This mode of speaking is quite common. I might say, for instance “The opinions which I read in Socrates I believed to be true,” meaning what I read as his opinions in Plato and others of the Socratic school, though Socrates himself wrote no books. So I might say, I wished to imitate the deeds which I had read of in Alexander and Scipio, not meaning that they described their own deeds, but that I had read in other men's works of the deeds which I admired as done by them. Therefore, though I may not be able to inform you of any records of Pythagoras himself as being extant, and proved by the attestation of his son or daughter or others of his disciples, yet you cannot hold me guilty of falsehood, because I said not that I had read his books, but his doctrines. You are quite mistaken if you thought to make this a screen for your falsehood, and to maintain that because I cannot produce any book written by Pythagoras, you have a right to assert that six thousand books of Origen have been lost.
Source: Apology for himself against the Books of Rufinus (New Advent)