The sophists were intellectuals and teachers in ancient Greece who taught rhetoric, language, statesmanship, and virtues. They claimed to have knowledge and charged high rates to teach the sons of wealthy Athenians skills like debating, persuasion, and arguing to secure careers in law and politics. The sophists believed that truth was relative and depended on individual perspectives. Protagoras was one of the first sophists and said that man determines what is true. This caused tensions as it suggested there were no absolute truths and blurred the lines between right and wrong, weakening moral order.