 In 1890 he defended his Master's thesis, "Metaphysics in Ancient Greece", in which he argued that the Holy Scripture and Christian theology largely stemmed directly from the idealistic philosophy of ancient Greece.The religious beliefs of Trubetskoy are sometimes identified as Christocentrism, wherein the Church serves as a continuation of the Incarnation of Christ to convey divine precepts to society.These views are set forth in Trubetskoy's work, "The Teaching on Logos".