Pericles' words are echoed in other critical speeches of later Western history... Lincoln at Gettysburg... Churchill's... repeated promise to the British people... of "blood, toil, tears, and sweat." And no wonder, for both orator's knew their Thucydides and knew this speech [Funeral Oration over the Athenian dead in the first year of the Peloponnesian War].... the most obvious later parallel is the 1961 presidential address of John F. Kennedy.... When he told of the sacrifices yet to come, like Pericles he pulled no punches.... In neither case is there a confession of atheism, just an implied acknowledgement that a politician is no oracle and has no business speaking on behalf of heaven.

Ch.VII The Way They Went: Greco-Roman Meets Judeo-Christian - Sailing the Wine-Dark Sea: Why the Greeks Matter (2003)