Plato On Epideixis: Hippias Major

“I mean, Gorgias, the famous sophist from Leontini, came here on public business as the representative of his native city, because he was thought to be the most competent of the Leontinians to conduct their state affairs; and not only was he popularly regarded as the best speaker ever to have addressed the Assembly, but he also gave lectures [epideixis] as a private individual and met with our young men, and earned and received a lot of money from our city” – Plato. Hippias Major 282b.