the Greek philosophers expounded some of the major archetypal concepts concerning the nature of psychic reality. For the Milesians it was physis (nature) and arche (the primal, original matter). For Pythagoras it was arithmos
Edinger argues that each major Presocratic school gave philosophical articulation to a distinct archetypal configuration, rendering early Greek philosophy a systematic map of the collective unconscious.
, The Psyche in Antiquity, Book One Early Greek Philosophy thesis