"In 1912, Sergei Bulgakov published The Philosophy of Economy, a sociological, philosophical, and religious examination of economic materialism. This was his way of settling an intellectual debt which he owed from his period as a respected Marxist intellectual. After writing two well-received works of Marxist economics, he drifted from political economy to explore the entire gamut of Idealist thought, particularly Kant, Hegel, and Schelling. This drift ended in one final major transition from Idealism to Christianity through reading the Russian sage and mystic Vladimir Solovyov. Like Solovyov, Bulgakov was drawn to a richly speculative understanding of the figure of Sophia from the Wisdom literature of the Old Testament—relating it in different ways to the order of Creation, the historical person of Mary, and the Church considered as the Bride of Christ. The Philosophy of Economy was Bulgakov’s first work to explicitly appeal to Sophiology in order to illuminate what are usually considered concerns of the practical order. With it, he hoped to move beyond the opposition of life and thought toward a more holistic, liturgical, and artistic understanding of the daily activity and ultimate destiny of the human community."