Answer: platonism

AnswerCrossword Clue
PLATONISMThe Academy's doctrine
platonismAny of various revivals of Platonic doctrines or related ideas, esp. Neoplatonism and Cambridge Platonism (a 17th-century attempt to reconcile Christianity with humanism and science)
platonismThe philosophy of Plato or his followers
platonismThe theory that numbers or other abstract objects are objective, timeless entities, independent of the physical world and of the symbols used to represent them
platonismthe philosophy of Plato