Which philosopher founded the Academy in Athens and had Philip of Opus as a disciple?
Philip of Opus:  Philip of Opus is probably identical with the Philip of Medma (or Mende), the astronomer, who is also described as a disciple of Plato. Plato: Plato ( ; Greek: Πλάτων "Plátōn", ] in Classical Attic; 428/427 or 424/423 – 348/347 BC) was a philosopher in Classical Greece and the founder of the Academy in Athens, the first institution of higher learning in the Western world.
Plato