Book I

. to the following effect. The New Academy must not be regarded as

having revolted against the Old, all that it did was to discuss that new doctrine of καταληψις advanced by Zeno. The doctrine of ακαταληψια though present to the minds of the ancients had never taken distinct shape, because it had met with no opposition. The Old Academy was rather enriched than attacked by the New. Antiochus, in adopting Stoicism under the name of the Old Academy, made it appear that there was a strife between it and the New. With Antiochus the historical exposition of Cic. must have ended. From this portion of the first book, Aug. derived his opinion (_Contra. Ac._ II. 1) that New Academicism was excusable from the necessities of the age in which it appeared. Indications of