The novel explores the final hours of the Roman poet Virgil, who, while on his deathbed, contemplates the value and impact of his life's work, particularly his unfinished epic, the Aeneid. The narrative is a complex, stream-of-consciousness meditation on art, life, and death, with Virgil wrestling with his desire to burn his epic and the emperor's command to preserve it. The book delves into themes of the meaning of human existence, the role of art in society, and the clash between the individual's inner world and the external world.

This book presents the teachings of Musonius Rufus, a prominent Stoic philosopher of the 1st century AD, whose ideas focus on the practical applications of Stoicism in daily life. Through a series of lectures and dialogues, Rufus emphasizes the importance of virtue as the sole path to happiness, advocating for simplicity in living, self-discipline, and equality between men and women in education and marriage. His accessible philosophy addresses how to live a good and moral life, covering topics from diet and exercise to the handling of emotions and the importance of philosophical study.