Note 99 — Chapter X · ETHICS. THE GENERAL PRINCIPLES OF THE STOIC ETHICS. ABSTRACT THEORY OF MORALITY.
Oswald J. (Oswald Joseph) Reichel translation
Cic. Acad. i. 10, 38: Cumque superiores (Aristotle and others) non omnem virtutem in ratione esse dicerent, sed quasdam virtutes natura aut more perfectas: hic [Zeno] omnes in ratione ponebat. ↑