SVF I.98
Stoic: Zeno of Citium · Ancient source: Aristocles of Messene, On Philosophy, Book 7 (quoted by Eusebius, Praeparatio evangelica XV) — Euseb. PE XV p. 816d · Source language: Ancient Greek · Source status: Later report, Paraphrase by ancient source
Original — Ancient Greek
Στοιχεῖον εἶναί φασι τῶν ὄντων τὸ πῦρ, καθάπερ Ἡράκλειτος, τούτου δ᾽ ἀρχὰς ὕλην καὶ θεόν, ὡς Πλάτων. ἀλλ᾽ οὗτος ἄμφω σώματά φησιν εἶναι, καὶ τὸ ποιοῦν καὶ τὸ πάσχον, ἐκείνου τὸ πρῶτον ποιοῦν αἴτιον ἀσώματον εἶναι λέγοντος. ἔπειτα δὲ καὶ κατά τινας εἱμαρμένους χρόνους ἐκπυροῦσθαι τὸν σύμπαντα κόσμον, εἶτ᾽ αὖθις πάλιν διακοσμεῖσθαι. τὸ μέντοι πρῶτον πῦρ εἶναι καθαπερεί τι σπέρμα, τῶν ἁπάντων ἔχον τοὺς λόγους καὶ τὰς αἰτίας τῶν γεγονότων καὶ τῶν γιγνομένων καὶ τῶν ἐσομένων· τὴν δὲ τούτων ἐπιπλοκὴν καὶ ἀκολουθίαν εἱμαρμένην καὶ ἐπιστήμην καὶ ἀλήθειαν καὶ νόμον εἶναι τῶν ὄντων ἀδιάδραστόν τινα καὶ ἄφυκτον. ταύτῃ δὲ πάντα διοικεῖσθαι τὰ κατὰ τὸν κόσμον ὑπέρευ, καθάπερ ἐν εὐνομωτάτῃ τινὶ πολιτείᾳ.
StoicOs Translation
They say that fire is the element of the things that are, as Heraclitus did, and that its principles are matter and god, as Plato said — but Zeno says that both are bodies, the active and the passive, whereas Plato said the first active cause is incorporeal. Further, that at certain fated times the entire cosmos goes up in fire, and then is ordered anew again. And that this first fire is like a kind of seed, holding the reasons and causes of all things — of what has been, what is, and what will be; and that the interweaving and succession of these is fate, knowledge, truth and a law of what exists, from which there is no escape or flight. In this way everything in the cosmos is governed supremely well, as in the best-ordered commonwealth.
Context
Aristocles of Messene, a Peripatetic philosopher of the first century CE, summarised Stoic physics in his work On Philosophy; the Christian bishop Eusebius (4th century CE) excerpted that summary in his Praeparatio evangelica. The passage thus reaches us through two intermediaries, both writing long after Zeno, and neither a Stoic — the Peripatetic compares school doctrines, the bishop collects pagan views to argue against them.
Text verified against H. von Arnim, SVF I (1903), no. 98, p. 27 (scanned page). Eusebius introduces the excerpt with the heading “On the philosophy of the Stoics, how Zeno gave his account of the principles”. Aristocles, a Peripatetic, summarises Zeno's physics; Eusebius preserves the summary three centuries later.
What the source actually tells us
This is a later doxographic report of Zeno's doctrine of principles, in Aristocles' own words. It attests the core structure: fire as element (with Heraclitus named as forerunner), two corporeal principles (active and passive), the periodic conflagration (ekpyrōsis) and re-ordering of the cosmos, the first fire as a seed containing the rational formulas (logoi) of all things, and fate as their inescapable interweaving. None of the wording is Zeno's own; the technical terms may partly reflect later Stoic systematisation.
Philosophical meaning
This is the grandest surviving panorama of Zeno's physics: a cosmos that periodically dissolves into creative fire and is born again, ruled from within by a seminal reason that already contains everything past, present and future. Fate here is not blind necessity but the same thing as knowledge, truth and law — the closing image of the cosmos as a supremely well-governed city makes physics and politics mirror each other, an idea that echoes in Marcus Aurelius' “dear city of Zeus”.
Scholarly uncertainty
How much of this summary goes back to Zeno himself and how much to the school tradition Aristocles knew cannot be decided. The vocabulary of “seminal reasons” and the equation fate–knowledge–truth–law may be later Stoic formulation; the report also compresses positions (Heraclitus, Plato) for comparison. The doctrine of the conflagration is, however, independently attested for the early Stoa.
Go deeper
About this edition
StoicOs Ancient Library is a developing multilingual digital study edition of surviving early Stoic material. The Stoicorum Veterum Fragmenta assembled by Hans von Arnim provides the traditional reference framework. StoicOs distinguishes carefully between fragments, testimonia, later reports and interpretation. StoicOs translations are prepared from the surviving ancient-language sources where available.