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Arcesilaus (Ἀρκεσίλαος) ( 316- 241 BC) was a Greek philosopher and founder of the New, or Middle, Academy.

Born at Pitane in Aeolia , he was trained by Autolycus, the mathematician, and later at Athens by Theophrastus and Crantor, by whom he was led to join the Academy. He subsequently became intimate with Polemon and Crates , whom he succeeded as head of the school.

Diogenes Laertius says that similarly to his succesor 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. His doctrines, which must be gathered from the writings of others ( Cicero, es cad. 1. 12, iv. 24; De Orat. iii. 18; Diogenes Laertius iv. 28; Adv. Math. vii. 150, Pyrrh. Hyp. i. 233), present an attack on the Stoic ctiavracria icarctX~irris1j (Criterion) and are based on the sceptical element, which was latent in the later writings of PlatoFor the computing technology, see PLATO System. Plato ( Greek: Platon (c. 427 BC c. 347 BC) was an immensely influential classical Greek philosopher, student of Socrates, teacher of Aristotle, writer, and founder of the Academy in Athens. Plato, who is be.

He held that strength of intellectual conviction cannot be regarded as valid, as much as it is characteristic equally of contradictory conctions. The uncertainty of sensible data applies equally to the conclusions of reason, and therefore man must be content with probability which is sufficient as a practical guide. "We know nothing, not even our ignorance"; therefore the wise man will have to be content with an agnostic attitude. He made use of the socratic method of instruction and left no writings. His arguments were marked by incisive humour and fertility of ideas.

See R. Brodeisen, De Arcesila philosopizo (1821); Aug. Geffers, Arcesila (1842); RitterHeinrich Ritter ( November 21, 1791 February 3, 1869) was a German philosopher. He was born at Zerbst, and studied philosophy and theology at Gottingen and Berlin until 1815. In 1824 he became extraordinary professor of philosophy at Berlin, later transfe and PrellerLudwig Preller ( September 15, 1809 June 21, 1861) was a German philologist and antiquarian. Born in Hamburg, he studied at Leipzig, Berlin and Gottingen, in 1838 he was appointed to the professorship of philology at the University of Tartu, which, howeve, Hist. philos. graec. (1898).

This entry was originally from the 1911 Encyclopedia Britannica.



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