Isocrates (/aɪ.ˈsɒk.rə.ˌtiːz/; Greek: Ἰσοκράτης, Greek pronunciation: [isokrátɛ̂ːs]; 436–338 BC), an ancient Greek rhetorician, was 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 BCE. 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 was born to a wealthy family in Athens and received a first-rate education. He was greatly influenced by his sophist teachers, Prodicus and Gorgias, and was also closely acquainted with Socrates. After the Peloponnesian War, his family lost its wealth, and Isocrates was forced to earn a living.
His professional career is said to have begun with logography: he was a hired courtroom speechwriter. Athenian citizens did not hire lawyers; legal procedure required self-representation. Instead, they would hire people like Isocrates to write speeches for them. Isocrates had a great talent for this since he lacked confidence in public speaking. His weak voice motivated him to publish pamphlets and although he played no direct part in state affairs, his written speech influenced the public and provided significant insight into major political issues of the day.