De Tranquillitate Animi

Περὶ εὐθυμίας Plutarch. Plutarchi Chaeronensis Moralia, Vol III. Vernardakēs, Grēgorios N., editor. Leipzig: Teubner, 1891.

Of the Tranquillity of the Mind. (eng) Plutarch. Plutarch's Morals, Vol. I. Goodwin, William W., editor; Morgan, Matthew, translator. Boston: Little, Brown, and Company; Cambridge: Press of John Wilson and Son, 1874. On Tranquillity of Mind (eng) Plutarch. Moralia, Vol. VI. Helmbold, William Clark, translator. Cambridge, MA: Harvard University Press; London: William Heinemann Ltd., 1939 (printing).