Infobox Philosopher
region = Western Philosophy
era = Ancient philosophy
color = #B0C4DE

image_size =
image_caption =
name = Arcesilaus
birth = c. 316 BC, Pitane, Aeolis
death = c. 241 BC, Athens
school_tradition = Platonism
main_interests = Platonism, Skepticism
notable_ideas = Founder of Academic Skepticism
influences = Plato, Theophrastus, Crantor, Polemo, Crates of Athens
influenced = Lacydes, Carneades, Clitomachus, Philo of Larissa

Arcesilaus ( _el. Ἀρκεσίλαος) (ca. 316-ca. 241 BC) was a Greek philosopher and founder of the Second or Middle Academy—the skeptical phase of the Academy. Arcesilaus succeeded Crates as head (scholarch) of the Academy c. 264 BC. He did not preserve his thoughts in writing, so his opinions can only be gleaned second-hand from what is preserved by later writers. He was the first Academic to adopt a position of philosophical skepticism, that is, he doubted the ability of the senses to discover truth about the world, although he may have continued to believe in the existence of truth itself. This brought in the skepical phase of the Academy. His chief opponents were the Stoics and their belief that reality could be comprehended with certainty.


Arcesilaus was born in Pitane in Aeolis. His early education was provided by Autolycus the mathematician, with whom he migrated to Sardis. Afterwards, he came to Athens to study rhetoric; but adopted philosophy and became the eromenos and disciple first of Theophrastus and afterwards of Crantor. [Eusebius of Caesarea: "Praeparatio Evangelica" VI: "For having associated in boyhood with Theophrastus, a man of gentle and amorous disposition, Arcesilaus being beautiful and still in the bloom of youth gained the love of Crantor the Academic, and attached himself to him; and being not without natural ability, he let it run its swift and easy course"] He subsequently became intimate with Polemo and Crates, and eventually became head of the school (σχολάρχης).

Diogenes Laërtius says that, like his successor Lacydes, he died of excessive drinking, but the testimony of others (e.g. Cleanthes) and his own precepts discredit the story, and he is known to have been much respected by the Athenians.


Arcesilaus committed nothing to writing, his opinions were imperfectly known to his contemporaries, and can now only be gathered from the confused statements of his opponents.

On the one hand, he is said to have restored the doctrines of Plato in an incorrupted form; while, on the other hand, according to Cicero, [Cicero, "Academica", i. 12] he summed up his opinions in the formula, "that he knew nothing, not even his own ignorance." There are two ways of reconciling the difficulty: either we may suppose him to have thrown out such aphorisms as an exercise for his pupils, as Sextus Empiricus, [Sextus Empiricus, "Pyrrh. Hypotyp." i. 234] who calls him a Sceptic, would have us believe; or he may have really doubted the esoteric meaning of Plato, and have supposed himself to have been stripping his works of the figments of the Dogmatists, while he was in fact taking from them all certain principles. [Cicero, "De Oratore", iii. 18.]

The Stoics were the chief opponents of Arcesilaus; he attacked their doctrine of a convincing conception ("katalêptikê phantasia") as understood to be a mean between science and opinion - a mean which he asserted could not exist, and was merely the interpolation of a name. [Cicero, "Academica", ii. 24.] It involved a contradiction in terms, as the very idea of "phantasia" implied the possibility of false as well as true conceptions of the same object.

It is a question of some importance as to how the skepticism of the Middle and New Academy was distinguished from that of Pyrrhonism. Admitting the formula of Arcesilaus, "that he knew nothing, not even his own ignorance," to be an exposition of his real sentiments, it was impossible in one sense that skepticism could proceed further: but the Academic skeptics do not seem to have doubted the existence of truth in itself, only our capacities for obtaining it. It differed also from the principles of the pure skeptic in the practical tendency of its doctrines: while the object of the one was the attainment of perfect equanimity, the other seems rather to have retired from the barren field of speculation to practical life, and to have acknowledged some vestiges of a moral law within, at best but a probable guide, the possession of which, however, formed the real distinction between the sage and the fool. Slight as the difference may appear between the speculative statements of the two schools, a comparison of the lives of their founders and their respective successors leads to the conclusion, that a practical moderation was the characteristic of the Academic skeptics. [Sextus Empiricus, "adv. Math. "ii. 158, "Pyrrh. Hypotyp." i. 3, 226.]


External links

*sep entry|arcesilaus|Arcesilaus|Charles Brittain

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Arcesilāus — Arcesilāus, s. Arkesilaos …   Pierer's Universal-Lexikon

  • Arcesilaus — Arcesilāus (grch. Arkesilaos), griech. Philosoph, geb. 315 v. Chr. zu Pitane in Äolien, gest. zu Athen 241, Begründer der »mittlern« Akademie, empfahl den nach der Wahrheit Strebenden, sie sollten, um frei von Irrtum zu bleiben, jedes bestimmte… …   Kleines Konversations-Lexikon

  • Arcesilaus — Arcesilaus, aus Pitane in Aeolien, um 300 v. Chr. blühend, Stifter der neuen akadem. Schule; er lehrte, daß der Mensch nie eine vollständige Gewißheit erlangen könne, er müsse sich daher mit Meinungen statt mit Ueberzeugungen begnügen; st. zu… …   Herders Conversations-Lexikon

  • Arcesilaus — /ahr ses euh lay euhs/, n. 316 241 B.C., Greek philosopher. * * * ▪ Greek philosopher born 316/315 BC, Pitane, Aeolis [now in Turkey] died c. 241       philosopher who succeeded Crates as head of the Greek Academy; (Academy) he introduced a… …   Universalium

  • ARCESILAUS — I. ARCESILAUS Batti fil. Cyrenensium Rex, seditione civium regnô excidit. Polyaen. l. 8. c. 41. Herodot. Melpomene. Ei successit, filius Battus II. II. ARCESILAUS e Ducibus Alexandri Magni, cui post eius mortem, in divisione Provinciarum,… …   Hofmann J. Lexicon universale

  • Arcesilaus — Arkesilaos von Pitane (* um 316/15 v. Chr.; † um 241/40 v. Chr.) war ein griechischer Philosoph. Arkesilaos war Scholarch, d. h. Schuloberhaupt der sog. Zweiten (mittleren) Akademie. Er gab der Schule eine skeptische Richtung durch Einführung der …   Deutsch Wikipedia

  • Arcesilaus — (c. 316–242 BC) The founder of the middle Academy of Athens, and the first to break with the older Platonic cosmologies in favour of scepticism . The running battle between the Academy and the Stoics started with his attack on the basis of… …   Philosophy dictionary

  • Arcesilaus — /ahr ses euh lay euhs/, n. 316 241 B.C., Greek philosopher …   Useful english dictionary

  • Arcesilaus II of Cyrene — or Arcesilaus II (Greek: Ἀρκεσίλαος ὁ Χαλεπός, flourished 6th century BC) also known as Arcesilaus II The Oppressor , The Tough , The Severe or The Harsh . Arcesilaus was the fourth Greek Cyrenaean King and was a member of The Battiads dynasty.… …   Wikipedia

  • Arcesilaus III of Cyrene — or Arcesilaus III (Greek: ο Αρκεσίλαος, flourished 6th century BC) was the sixth Greek Cyrenaean King and was a member of The Battiads dynasty. Arcesilaus was the son of the fifth Cyrenaean King Battus III and Cyrenaean Queen Pheretima. His… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.