In his autobiography, Saint Augustine delves into profound themes that explore the essence of evil, the concept of time, and the pursuit of wisdom. Central to Augustine's reflections is the assertion that evil cannot be attributed to God. Augustine posits that evil is essentially a deficiency, an absence of good, rather than a tangible entity. "Evil does not exist," he insists, as anything possessing substance is inherently good. Consequently, those who criticize any part of God's creation lack reasoning, failing to grasp that wickedness is a distortion rather than a substance.

Another significant theme Augustine engages with is the nature of time, particularly in light of the biblical notion of creation ex nihilo, or creation out of nothing. This concept brings forth the perplexing idea of an absolute beginning, a notion that challenges human understanding. The question of what preceded creation is a common one, yet Augustine argues that time itself does not exist independently as events do. Time, he emphasizes, lacks substantiality outside its connection to temporal occurrences; it is not an entity in itself but is understood only in relation to events that transpire within it.

Augustine's life narrative is also a journey toward "the wisdom of eternal truth," a quest that is marked by encounters with doubt and temptation. His initial entanglement with the Manichaeans, whom he later criticizes for their lack of wisdom, underscores his persistent search for truth. Through this journey, Augustine gradually arrives at the realization that true wisdom is synonymous with faith, with all values ultimately emanating from God. His path reflects a transformative understanding where faith becomes the pinnacle of wisdom, guiding his life and thought.