Isocrates

Isocrates (436 - 338 BCE) was an Athenian orator and teacher, counted among the canonical "Ten Attic Orators." Rather than speaking in the law courts or assembly himself, he ran an influential school and wrote polished essays and orations meant to be read, promoting a broad education in rhetoric as preparation for public life. He is also known for urging the often-warring Greek city-states to unite, and his ideas shaped both ancient education and later notions of the well-rounded citizen.