IV. Heraclides Ponticus says, that he was accustomed to speak of himself in this manner; that he had formerly been Æthalides, and had been accounted the son of Mercury; and that Mercury had desired him to select any gift he pleased except immortality. And that he accordingly had requested that, whether living or dead, he might preserve the memory of what had happened to him. While, therefore, he was alive, he recollected everything; and when he was dead, he retained the same memory. And at a subsequent period he passed into Euphorbus, and was wounded by Menelaus. [...] But after Euphorbus died, he said that his soul had passed into Hermotimus; and when he wished to convince people of this, he went into the territory of the Branchidæ, and going into the temple of Apollo, he showed his shield which Menelaus had dedicated there as an offering. For he said that he, when he sailed from Troy, had offered up his shield which was already getting worn out, to Apollo, and that nothing remained but the ivory face which was on it. And when Hermotimus died, then he said that he had become Pyrrhus, a fisherman of Delos; and that he still recollected everything, how he had been formerly Æthalides, then Euphorbus, then Hermotimus, and then Pyrrhus. And when Pyrrhus died, he became Pythagoras, and still recollected all the circumstances that I have been mentioning. — Diogenes Laertius, *Lives of Eminent Philosophers*, Book VIII, Section IV, trans. C. D. Yonge (1853). **Surface Gloss:** Choosing unbroken memory across life and death as his gift from Hermes, Pythagoras recalls four prior incarnations—Aethalides, the Trojan warrior Euphorbus (proving it by identifying his rotting shield in Apollo's temple), the prophet Hermotimus, and the Delian fisherman Pyrrhus. **The Ivory-Center Proof of Continuity:** When claiming deep historical continuity or long-game foresight across radically different eras or career phases ("I was once a herald, then a soldier, then a prophet, then a fisherman"), anchor the narrative in a single, verifiable "ivory center"—an artifact, prediction, or timestamped record left in a public archive before the transition occurred.
— In our words · Source: Lives of Eminent Philosophers (Diogenes Laertius)