The City of God (by Augustine of Hippo)

The City of God by Augustine of Hippo is a philosophical work exploring two contrasting worlds: the earthly city, driven by human desires and materialism, and the heavenly city, rooted in spiritual values and divine truth. Augustine argues that history is a struggle between these two allegorical cities, and true fulfillment comes from aligning oneself with God's eternal city. The book offers insights on morality, justice, and the nature of human existence, emphasizing that lasting peace and happiness are found through faith in God rather than worldly possessions or status.