The City of God (De Civitate Dei)

*The City of God* by Saint Augustine is a philosophical and theological work that explores the contrast between two kinds of "cities": the earthly city, driven by human desires and pride, and the heavenly city, rooted in God's divine love and eternal truth. Augustine argues that history reflects the struggle between these two allegorical realms, emphasizing that true peace and salvation come from spiritual devotion to God. The book also defends Christianity against critics and offers insights into morality, divine justice, and the nature of human society, highlighting the importance of faith in the pursuit of lasting happiness.