Aristippus. He journeys to Rome (166 AD), encountering by chance on the way a blithesome young knight, Cornelius, who becomes a friend. Marius explores Rome in awe, and, "as a youth of great attainments in Greek letters and philosophy", is appointed amanuensis to the Emperor Marcus Aurelius. Aurelius's Meditations on Stoicism and on Plato, and the public lectures of the rhetorician Fronto, open Marius' eyes to the narrowness of Epicureanism. Aurelius's indifference, however, to the cruelty to animals in the amphitheatre, and later to the torments inflicted on people there, causes Marius to question the values of Stoicism (end of 'Part the Second'). Disillusioned with Rome and the imperial court which seem "like some stifling forest of bronze-work, transformed as if by malign enchantment out of the living trees", puzzled by the source of Cornelius's serenity, still Epicurean by temperament but seeking a more satisfying life-philosophy, Marius makes repeated visits alone to the Campagna