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"Funeral Oration" is a speech by Lysias, one of the "Canon of Ten" Attic orators (Speech 2 in Lamb's translation).
Sources
Carey, Christopher. Trials from Classical Athens. New York: Routledge, 1997. (ISBN978-0415107617)
Todd, S.C. Lysias (The Oratory of Classical Greece). Austin: University of Texas Press, 2000. (ISBN978-0292781665)