The document discusses the Sophists and Socrates in ancient Athens. It provides background on the Sophists, who charged fees to teach rhetoric and debate skills to the wealthy classes. Their teachings emphasized argument over truth and contributed to tensions in Athens. The most famous Sophist, Protagoras, claimed "man is the measure of all things," which was seen as radical. Socrates took a different approach by questioning people to uncover definitions and ethical standards through logical analysis rather than teaching for pay. He was ultimately tried for heresy and corrupting youth, and executed. Plato was a student of Socrates and founded the Academy in Athens to continue philosophical teachings.