Critias

Critias was a disciple of Gorgias and Socrates. He was the uncle of Plato and one of his writings is named after him.

Critias came from an aristocratic family. He was an opponent of Athenian democracy and a great admirer of Sparta. After the defeat of Athens in the Peloponnesian War, he became the head of thirty oligarchs who took over the tyrannical rule of the city.

His works are primarily elegies and dramas, and in his prose writings he dealt with the constitutions of the Greek states. However, many of his works have not survived. The most important of the surviving fragments is the drama Sisyphus.