History of the Peloponnesian WarThucydides

Thucydides began writing his history at the outbreak of the war between Athens and Sparta in 431 BC, convinced from the start that it would be "a great war and more worthy of relation than any that had preceded it." The work covers roughly twenty years of the conflict and breaks off mid-sentence in 411, unfinished.

The method is severe. Thucydides strips away the divine machinery that Herodotus relied on and replaces it with human motivation: fear, honor, and interest. He reconstructs speeches not as transcripts but as what the speakers would most likely have said, and uses them to dramatize the logic of political decision. Pericles' Funeral Oration presents the democratic ideal at its most confident; the Melian Dialogue, where Athens tells a small island that the strong do what they can and the weak suffer what they must, presents its collapse into naked power.

The plague at Athens, the Sicilian expedition, the revolution of the Four Hundred: Thucydides narrates each as both a particular event and a case study in how war corrodes institutions, language, and moral reasoning. Factional violence at Corcyra produces his most famous passage on the corruption of words, where moderation becomes cowardice and recklessness becomes courage. He intended the work as "a possession for all time," and the tradition has taken him at his word. Wherever political philosophy asks what happens to justice under the pressure of war, Thucydides is the first witness called.