The later years of the Julio-Claudian dynasty, while they brought about the complete transformation of the government into an absolute monarchy, also laid the foundations for that reign of the philosophers which had been dreamed of by Plato, and which has never been so nearly realised as it was in Rome during the second century after Christ. The Stoical philosophy, passing beyond the limits of the schools to become at once a religious creed and a practical code of morals for everyday use, penetrated deeply into the life of Rome. At first associated with the aristocratic opposition to the imperial government, it passed through a period of persecution which only strengthened and consolidated its growth. The final struggle took place under Domitian, whose edict of the year 94, expelling all philosophers from Rome, was followed two years afterwards by his assassination and the establishment, for upwards of eighty years, of a government deeply imbued with the principles of Stoicism. Of the men who set this revolution in motion by their writings, the earliest and the most distinguished was Lucius Annaeus Seneca, the son of the rhetorician. Though only of the second rank as a classic, he is a figure of very great importance in the history of human thought from the work he did in the exposition of the new creed. As a practical exponent of morals, he stands, with Plutarch, at the head of all Greek and Roman writers. The life of Seneca was one of singularly dramatic contrasts and vicissitudes. He was born in the year 4 B.C., at Cordova, where, at a somewhat advanced age, his father had married Helvia, a lady of high birth, and brought up in the strictest family traditions. Through the influence of his mother's family (her sister had married Vitrasius Pollio, who for sixteen years was viceroy of Egypt), the way was easy to him for advancement in the public service. But delicate health, which continued throughout his life, kept him as a young man from taking more than a nominal share in administrative work. He passed into the senate through the quaestorship, and became a well-known figure at court during the reign of Caligula. On the accession of Claudius, he was banished to Corsica at the instance of the Empress Messalina, on the charge of being the favoured lover of Julia Livilla, Caligula's youngest sister. Whether the scandal which connected his name with hers, or with that of her sister Agrippina, had any other foundation than the prurient gossip which raged round all the members of the imperial family, may well be doubted; but when Agrippina married Claudius, after the downfall and execution of Messalina seven years later, she recalled him from exile, obtained his nomination to the quaestorship, and appointed him tutor to her son Domitius Nero, then a boy of ten. The influence gained by Seneca, an accomplished courtier and a clever man of the world, as well as a brilliant scholar, over his young pupil was for a long time almost