Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Philip of Opus, Greece, was a philosopher and a member of the Academy during Plato's lifetime. Philip was the editor of Plato's Laws. Philip of Opus is probably identical with the Philip of Medma (or Mende), the astronomer, who is also described as a disciple of Plato. According to Diogenes Laërtius, Philip of Opus was a disciple of Plato, who was responsible for transcribing Plato's Laws into twelve books, and writing the thirteenth book (the Epinomis) himself: Some say that Philip the Opuntian transcribed his [Plato's] work, Laws, which was written in wax. They also say that the Epinomis [the thirteenth book of the Laws], is his.