Isocrates (aɪˈsɒkrətiːz; Ἰσοκράτης isokrátɛ̂ːs; 436–338 BC) was an ancient Greek rhetorician, one of the ten Attic orators. Among the most influential Greek rhetoricians of his time, Isocrates made many contributions to rhetoric and education through his teaching and written works.
Greek rhetoric is commonly traced to Corax of Syracuse, who first formulated a set of rhetorical rules in the fifth century BC. His pupil Tisias was influential in the development of the rhetoric of the courtroom, and by some accounts was the teacher of Isocrates. Within two generations, rhetoric had become an important art, its growth driven by social and political changes such as democracy and courts of law. Isocrates starved himself to death, two years before his 100th birthday.
Isocrates was born into a prosperous family in Athens at the height of Athens' power shortly before the outbreak of the Peloponnesian War (431–404 BC). Suda writes that Isocrates was the son of Theodorus who owned a workshop that manufactured aulos. His mother's name was Heduto. He had a sister and three brothers; two of the brothers were Tisippos (Ancient Greek: Τίσιππος) and Theomnestos (Ancient Greek: Θεόμνηστος).
Isocrates received a first-rate education. "He is reported to have studied with several prominent teachers, including Tisias (one of the traditional founders of rhetoric), the sophists Prodicus and Gorgias, and the moderate oligarch Theramenes, and to have associated with Socrates, but these reports may reflect later views of his intellectual roots more than historical fact".
He passed his youth in a gloomy period following the death of Pericles, a great Athenian leader and statesman, it was a period in which wealth – both public and private – was dissipated, and political decisions were ill-conceived and violent. Isocrates would have been 14 years old when the democracy voted to kill all the male citizens of the small Thracian city of Scione. There are accounts, including that of Isocrates himself, stating that the Peloponnesian War wiped out his father's estate, and Isocrates was forced to earn a living.