imperial philosophy
More detailed accounts of imperial philosophy can be had in Stoic Philosophy by R. M. Rist (Cambridge, 1969) and in The Middle Platonists, a Study in Platonism, 80 BC-AD 220 by J. Dillon (London, 1977), and Neoplatonism by R. T. Wallis (London, 1972). (Boardman, 1986)
