Uploaded July 2026 | Updated September 2026, 3 weeks ago

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Discussion of Diodorus of Sicily’s understanding of writing history and its (moral and educational) purpose—with an assist from Cicero.

Terms:
* historike parrhesia (historical truth-telling)
* parrhesia (= frank speech)
* History as “prophetess of truth” (Diodorus) & “Magistra Vitae” (Cicero)
* philanthropia (mildness to one in your power = Latin "clementia")
* sophrosune (self-control or moderation)

Ancient Sources:
Diodorus 1.2
Cicero De Oratore 2.36.

Also mentioned the virtues of piety, courage, justice, gratitude, dignity, intelligence & education (padeia), and friendship.