Antiphon the Sophist

Antiphon the Sophist was an ancient Greek writer whose life and works are primarily known through fragmented texts and scholarly debate. He is believed to have been active in Athens during the last two decades of the 5th century BC. A central point of scholarly discussion is whether the Sophist Antiphon is distinct from Antiphon the Orator, a question that has divided scholars since antiquity. The most significant surviving work attributed to Antiphon the Sophist is "On Truth." This treatise, of which only fragments remain, covers a wide range of subjects, including astronomy, mathematics, morality, and ethics. It is particularly valued for its apparent precursor status to natural rights theory, positing a contrast between the repressive nature of convention and law (νόμος) and the spontaneity and freedom required by "nature" (φύσις), especially human nature. The text suggests that institutions often impose gratuitous restrictions that are inimical to human nature, which inherently shuns pain. This perspective has led to interpretations of Antiphon as an advocate for egalitarian and libertarian principles. However, a new fragment of "On Truth" discovered in 1984 has challenged this egalitarian interpretation, suggesting it may be obsolete. In addition to "On Truth," fragments of treatises like "On Concord" and "Politicus" have also been preserved, though sometimes attributed to Antiphon the Orator. The authorship of the treatise "Interpretation of Dreams" under the name Antiphon is also uncertain, with some scholars believing it to be by the Sophist and others by a different individual. Beyond his philosophical writings, Antiphon was also noted as a mathematician. Alongside Bryson of Heraclea, he is credited with being the first to establish upper and lower bounds for the value of pi by inscribing and circumscribing polygons around a circle and calculating their areas. This method, known as the method of exhaustion, was later employed by Archimedes. Antiphon's work on this problem was also applied to the challenge of squaring the circle. Another work, the *Anonymus Iamblichi*, found in Iamblichus' *Protrepticus*, contains a lengthy excerpt on education and political philosophy. While Friedrich Blass attributed this work to Antiphon in 1889, this attribution is not universally accepted and the text is now often referred to as the *Anonymus Iamblichi* in modern scholarship. Antiphon's practical engagement with his ideas is also noted; he is reported to have set up a booth in the public agora to offer consolation to the bereaved, demonstrating a compassionate response to human suffering.