An vitiositas ad infelicitatem sufficia

Εἰ αὐτάρκης ἡ κακία πρὸς κακοδαιμονίαν Plutarch. Plutarchi Chaeronensis Moralia, Vol 3. Vernardakēs, Grēgorios N., editor. Leipzig: Teubner, 1891.

Whether vice is sufficient to render a man unhappy (eng) Plutarch. Plutarch's Morals, Vol. 4. Goodwin, William W., editor; White, Samuel, translator. Boston: Little, Brown, and Company; Cambridge: Press of John Wilson and Son, 1874. Whether vice be sufficient to cause unhappiness (eng) Plutarch. Moralia, Vol. 6. Helmbold, William Clark, translator. Cambridge, MA: Harvard University Press; London: William Heinemann Ltd., 1939 (printing).