This book analyses the process of development of Byzantine thought, which carries original solutions to fundamental philosophical questions and an original understanding of the world and humanity. The author defines the contents and characteristics of Byzantine philosophy, discusses the most important factors of its development as well as the role of Greco-Roman world and the place of Christian thinkers in this process. He also takes into consideration the Alexandrian school and the School of Antioch, the relationship between Byzantine philosophy and Greek Patristics and the attempts to restore the Byzantine neptic thought after the fall of Constantinople. The study is based on Byzantine sources, written in Greek.