A. A. Long; VI*—The Logical Basis of Stoic Ethics, Proceedings of the Aristotelian Society, Volume 71, Issue 1, 1 June 1971, Pages 85–104, https://doi.org/10.10.

This book reconstructs in detail the older Stoic theory of the psychology of action, discussing it in relation to Aristotelian, Epicurean, Platonic, and some of the more influential modern theories. Important Greek terms are transliterated and explained; no knowledge of Greek is required.