Pythagoreans, except Archytas of Tarentum, departed from Italy, and being collected together in Rhegium, there dwelt with each other. The most celebrated of them, however, were Phanto, Echecrates, Polymnastus, and Diocles, who were Phlyasians; and Xenophilus Chalcidensis of Thrace. But in the course of time, when the administration of public affairs proceeded into a worse condition, these Pythagoreans nevertheless preserved their pristine manners and disciplines, though the sect began to fail, till it generously perished. These things, therefore, are narrated by Aristoxenus. Nicomachus, however, in other respects accords with Aristoxenus, but as to the journey of Pythagoras, he says that this stratagem took place, while Pythagoras was at Delos. For he went there, in order to give assistance to his preceptor Pherecydes the Syrian who was then afflicted with the morbus pedicularis, and when he died, performed the necessary funeral rites. Then, therefore, those who had been rejected by the Pythagoreans, and to whom monuments had been raised, as if they were dead, attacked them, and committed all of them to the flames. Afterwards, they were overwhelmed by the Italians with stones, and thrown out of the house unburied. At that time, therefore, it happened that science failed together with those who possessed scientific knowledge, because till that period, it was preserved by them in their breasts as something arcane and ineffable. But such things only as were difficult to be understood, and which were not unfolded, were preserved in the memory of those who did not belong to the Pythagorean sect; a few things excepted, which certain Pythagoreans, who happened at that time to be in foreign lands, preserved as certain sparks of science very obscure and of difficult investigation. These also, being left by themselves, and not moderately dejected by the calamity, were scattered in different places, and no longer endured to have any communion with the rest of mankind. But they lived alone in solitary places, wherever they happened to meet with them; and each greatly preferred an association with himself to that with any other person. Fearing, however, lest the name of philosophy should be entirely exterminated from mankind, and that they should on this account incur the indignation of the Gods, by suffering so great a gift of theirs to perish, they made an arrangement of certain commentaries and symbols, and likewise, collected together the writings of the more ancient Pythagoreans, and of such things as they remembered. These, each left at his death to his son, or daughter, or wife, with a strict injunction not to give them to any one out of the family. This mandate therefore, was for a long time observed, and was transmitted in succession to their posterity,