SVF I.179

Original — Ancient Greek

Ζήνων δὲ οὕτως ἀπέδωκεν· τέλος ἐστὶ τὸ ὁμολογουμένως ζῆν· τοῦτο δ᾽ ἐστὶ καθ᾽ ἕνα λόγον καὶ σύμφωνον ζῆν, ὡς τῶν μαχομένως ζώντων κακοδαιμονούντων.

StoicOs Translation

Zeno rendered it thus: “the end is to live in agreement” — that is, to live according to one single reason and in concord with oneself, since those who live in inner conflict are unhappy.

Context

The passage survives in the Anthology of John Stobaeus (5th century CE), a vast collection of excerpts compiled roughly seven centuries after Zeno. In this ethical section Stobaeus is drawing on an earlier doxographical summary of Stoic ethics, usually attributed to Arius Didymus, court philosopher of Augustus. The witness is sympathetic and systematising rather than hostile: its aim is to summarise school doctrine accurately, but in its own compressed wording.

Source notes:Text as printed in H. von Arnim, Stoicorum Veterum Fragmenta I (1903), no. 179, from C. Wachsmuth's edition of Stobaeus (1884). Stobaeus is here excerpting the ethical doxography usually attributed to Arius Didymus (1st century BCE).

What the source actually tells us

This passage reports Zeno's definition of the telos, the end or goal of life. The surviving wording indicates that Zeno defined it as “living in agreement” (homologoumenōs zēn) and explained this as living according to one single, self-consistent reason. The embedded formula may preserve Zeno's own phrase, but the sentence as a whole is a doxographer's report, not a continuous quotation from one of Zeno's books. This is a later report of Zeno's position rather than Zeno's surviving words; we cannot determine with certainty where formula ends and paraphrase begins.

Philosophical meaning

This is the founding statement of Stoic ethics: the goal of life is internal agreement — a life in which one's judgments, desires and actions follow one single logos (λόγος, reason) instead of contradicting each other. Happiness (εὐδαιμονία, eudaimonia) is not a feeling to be chased but the state of a mind no longer at war with itself; misery is literally described as living in conflict (machomenōs). Virtue (ἀρετή, aretē) enters as the condition of that coherence. The later, more famous formula “living in agreement with nature” builds on exactly this foundation.

Scholarly uncertainty

Ancient sources already disagreed about the exact formula. Diogenes Laërtius (7.87) attributes “living in agreement with nature” (homologoumenōs tēi physei zēn) to Zeno's On the Nature of Man, while the Stobaeus tradition reports that Zeno said only “living in agreement” and that Cleanthes first added “with nature”. Scholars still debate which report is accurate. The transmitted text also varies slightly between witnesses (e.g. ἐστὶ / εἶναι in indirect discourse). What is secure is the concept: agreement, coherence of life under one reason.

Practical wisdom

The oldest surviving definition of the Stoic goal is not “feel nothing” but “stop contradicting yourself”. A practical reading: notice where your actions fight your values, where today's choice fights yesterday's intention. The work of the Stoic prokoptōn — the one making progress — is to bring judgment, desire and action under one consistent reason. Agreement with yourself comes first; agreement with nature, as the school later put it, grows from it.

Go deeper

• The four Stoic virtues explained →
• Study Stoic Ethics in the Academy →
• Thematic essays in The Stoic Journal →