Note 107 — Chapter X · ETHICS. THE GENERAL PRINCIPLES OF THE STOIC ETHICS. ABSTRACT THEORY OF MORALITY.

Cleanthes (in Plut. Sto. Rep. 7): When τόνος, on which see p. 128, 2, is found in the soul in a proper decree, ἰσχὺς καλεῖται καὶ κράτος· ἡ δ’ ἰσχὺς αὕτη καὶ τὸ κράτος ὅταν μὲν ἐπὶ τοῖς ἐπιφανέσιν ἐμμενετέοις ἐγγένηται ἐγκράτειά ἐστι, κ.τ.λ. In the same way, Chrysippus (according to Galen, Hipp. et Plat. iv. 6, p. 403) deduced what is good in our conduct from εὐτονία and ἰσχύς; what is bad, from ἀτονία καὶ ἀσθένεια τῆς ψυχῆς; and (ibid. vii. 1, p. 590) he referred the differences of individual virtues to changes in quality within the soul. By Aristo, p. 220, 1, virtue is defined as health; by Stob. ii. 104, as διάθεσις ψυχῆς σύμφωνος αὐτῇ; by Diog. 89, as διάθεσις ὁμολογουμένη. ↑