“An economy built on slave labor is vulnerable in two ways. One, availability of forced labor discourages technical innovation. The very wealthy [Roman]empire experienced no industrial revolutions. Two -- even more crucial -- slaves do not reproduce their own numbers. As Rome's wars of conquest ended, the slave population began to shrink, leading to a shortage of agricultural laborers by 200 A.D.”

“The German economic historian Fanz Oertel in the 1950s points to another drastic consequence of a slave economy. A slave economy initially allowed an increase of productivity through the invention and use of new machinery. Roman products remained at a simple level and could be reproduced by handicraft. By the fourth century, for example, the robust pottery industry of Greece was in sharp decline because other parts of the empire also learned to make pottery."The decline in international trade in the Mediterranean in the fourth century was partly due to increasing piracy, but it was also due to lack of industrial innovation and of need for exchange of manufactured goods.”

“[Roman] society became steadily more cosmopolitan. By 212 A.D., all inhabitants of the empire, except for slaves, were deemed to be citizens. The old Roman aristocracy was not fixated upon race and color. Wealth and literacy were what opened the doors of their urban mansions and country villas.”

“The most important fact to know about the Christian Church in the two hundred years after Jesus' death is that only at the end of this period did the Church comprise as many people as the far-flung Jewish community numbered (five million) in the Roman Empire. Christianity developed an intense rivalry with Judaism, and for many decades was compared to the Jews as a minority. This accounts for the intense anti-Semitism that became enshrined in Christianity by 200 A.D. ”

“Saint Paul was proud of his Roman citizenship, and his letter to various Christian communities in the empire presupposed an effective communications system that only Roman government, law, and military might allowed."The Church's administration evolved as the imperial government's structured was modified over time. An archbishop ruled a large territory that the Romans called a province. A bishop ruled a diocese, a smaller Roman administrative unit dominated by a large city."The capitals of the eastern and western parts of the empire -- Constantinople and Rome -- came in time to signify unusual and superior power for the bishops resident there. When the Roman state was dissolved in the Latin-speaking world around 458 A.D., the pope replaced the emperor as the political leader of the Eternal City.”

“The Stoics taught a life of restraint and control, the personal cultivation of learning, beauty, and reason. The Stoics asked the Romans to realize that much that is encountered in life is beyond the individual's control. Make the best of what can be humanly cultivated. It is a kind of Platonism shrunk to a pursuit of private feelings and thoughts: Do the best with what you can control and refine, and let the rest go."The world is rational, but it is only amenable to active intervention within the limits of the individual's capacity. Do not try to be an overachiever. Do not dream of social transformation. Private cultivation rather than social action makes for the good life. Although the slave Epictetus was one of the principal Stoic writers, the emperor Marcus Aurelius's upper-class background is more typical of its devotees."Stoicism is a narrow ethic, one suitable to the emotional and intellectual needs of aristocrat and slave alike, but less useful for the ambitious middle class.”

“Judaism was a legal religion in the Roman Empire; Christianity was not until the first Christian emperor ascended the throne in the fourth century A.D. There were periodic persecutions of the Christians by the imperial state and local officials. The resulting martyrs, often upper-class women of unusual devotion, only served to draw more attention and converts to the Church.”