Note 1 — Chapter V · LOGIC OF THE STOICS.
Oswald J. (Oswald Joseph) Reichel translation
Diog. 41: τὸ δὲ λογικὸν μέρος φασὶν ἔνιοι εἰς δύο διαιρεῖσθαι ἐπιστήμας, εἰς ῥητορικὴν καὶ διαλεκτικήν … τήν τε ῥητορικὴν ἐπιστήμην οὖσαν τοῦ εὖ λέγειν περὶ τῶν ἐν διεξόδῳ λόγων καὶ τὴν διαλεκτικὴν τοῦ ὀρθῶς διαλέγεσθαι περὶ τῶν ἐν ἐρωτήσει καὶ ἀποκρίσει λόγων. Sen. Ep. 89, 17: Superest ut rationalem partem philosophiæ dividam: omnis oratio aut continua est aut inter respondentem et interrogantem discissa; hanc διαλεκτικὴν, illam ῥητορικὴν placuit vocari. Cic. Fin. ii. 6, 17; Orat. 32, 113. Quintil. Inst. ii. 20, 7. According to these passages, Rhetoric was by Zeno compared to the palm of the hand, and Dialectic to the fist: quod latius loquerentur rhetores, dialectici autem compressius. The Stoics agree with Aristotle in calling rhetoric ἀντίστροφος τῇ διαλεκτικῇ (Sop. in Hermog. v. 15, Walz.). See Prantl, Gesch. der Log. i. 413. ↑