What contributed to the development of culture in Byzantium?

Byzantium considered itself the heir to the Roman Empire, opposing itself to the barbarians who lived on the borders of the empire. Greece, the cradle of civilization, was part of Byzantium, respectively, the Byzantines considered themselves the successors not only of Rome, but also of Greece, with its sciences and arts. Institutions of law developed, which trained first-class lawyers. Also, the imperial court of Byzantium absorbed the features of the eastern kingdoms, adopting the science and art of the east.