“…See, for example, Cornford (1935, Owen 19361966, Vlastos 1939, Callahan 1948, Philippson 1949, Fränkel 1955, Hackforth 1959, Leyden 1964, Brague 1982, Sorabji 1983, Mohr 1985, Baltes 1996, Dillon 1997, and Keizer 2000. The last twenty years have greatly advanced our understanding of Plato's cosmology and metaphysics.…”