This study examines the conceptions of human nature and the state as developed by Cicero and Augustine, two prominent figures in Western thought. Cicero, in addition to being a significant philosopher, was one of the great statesmen of Roman history. He regarded the Roman Republic as an ideal political order and considered natural law and justice as universal values inherent in human nature. According to him, justice is the fundamental principle that holds society together, and the source of law should be natural laws. However, he advocated for a political and social order based on inequalities, supporting an aristocracy-based republican regime with this perspective. Augustine, on the other hand, approached human nature through the lens of Christian theology, particularly the concept of original sin. He argued that human nature is inherently good but was tainted by original sin, leading humanity to succumb to worldly desires. In his understanding of the state, Augustine introduced the distinction between the “City of God” and the “Earthly City.” He regarded the City of God as the symbol of spiritual and eternal salvation, while the Earthly City was seen as a flawed and temporary structure resulting from humanity’s sinful nature. According to Augustine, the ultimate purpose of human life is to achieve eternal happiness by reaching the City of God. The article compares Cicero’s universal concept of law, adapted from ancient Greek thought to fit Roman culture, with Augustine’s salvation-focused approach rooted in Christian theology. The ideas of these two thinkers about human nature and the state served as a bridge for political and moral philosophy during the transition from antiquity to the Middle Ages.
The study examines Cicero and Augustine’s perspectives on human nature and the state, highlighting their profound influence on Western thought during the transition from antiquity to the Middle Ages. Cicero, a Roman statesman and philosopher, regarded the Roman Republic as an ideal political system. He emphasized natural law and justice as universal principles inherent in human nature, asserting that justice is the foundation of societal cohesion. Cicero’s concept of natural law, deeply influenced by Stoicism, held that justice and laws derive legitimacy from a divine, rational order shared by all humanity. This view established a moral framework transcending political and cultural boundaries. However, Cicero also supported a hierarchical social and political structure, believing governance should rest with the most capable individuals. His advocacy of an aristocratic republican model reflected his concern for preserving stability and the ideals of the Roman Republic.
Cicero’s synthesis of Greek philosophical traditions with Roman ideals positioned him as a key figure in bridging classical and medieval thought. He rejected both monarchy and radical democracy, favoring a balanced republic where laws were aligned with natural law. This approach, while idealistic in its universal aspirations, also defended the practical realities of Roman aristocratic rule. Cicero’s works, particularly his emphasis on justice as an intrinsic value, laid the groundwork for the later development of natural law theories, notably influencing Christian thinkers.
Augustine, a major figure in early Christian philosophy, approached human nature and governance through a theological lens. His doctrine of original sin, a central element of his thought, argued that human nature, though inherently good, was corrupted by Adam and Eve’s disobedience. This original sin introduced moral frailty and a susceptibility to worldly desires, shaping Augustine’s views on human institutions. For Augustine, human existence is marked by a dual nature—good yet flawed—and this duality influenced his political theology.
A cornerstone of Augustine’s philosophy is his distinction between the “City of God” (Civitas Dei) and the “Earthly City” (Civitas Terrena). The City of God represents a spiritual community of those who live according to divine will, seeking eternal salvation through love for God and moral virtue. By contrast, the Earthly City symbolizes human institutions corrupted by sin and driven by pride and material ambition. Augustine argued that earthly governance, while necessary for maintaining social order, is inherently flawed and temporary. True justice and fulfillment, he claimed, are only achievable within the City of God, a transcendent and eternal realm.
Augustine’s views on governance reflect his theological priorities. He saw political authority as a tool that, despite its imperfection, could curb evil and guide individuals toward a higher moral purpose. However, he remained critical of human institutions’ capacity to achieve lasting justice, emphasizing the ultimate need for divine grace and spiritual salvation. This theological perspective contrasted sharply with Cicero’s more optimistic view of human reason and governance.
The study highlights the differences between Cicero and Augustine’s approaches to human nature and the state while also recognizing their shared influence on Western thought. Cicero’s belief in reason, natural law, and the moral potential of humanity reflects the classical humanist tradition. In contrast, Augustine’s focus on original sin and divine grace underscores the limitations of human efforts and the need for spiritual redemption. Cicero’s universalism is grounded in a rational order accessible to all, while Augustine’s theology points to a divine order beyond human comprehension.
Despite their differing views, both thinkers shaped their respective eras and provided foundations for later developments. Cicero’s adaptation of Greek philosophy to Roman contexts influenced the evolution of natural law theory and its application in medieval Christian thought. Augustine’s integration of classical philosophy with Christian theology redefined political and moral philosophy, emphasizing the relationship between earthly and divine authority. Together, their ideas bridged the intellectual traditions of antiquity and the Middle Ages, leaving a lasting legacy on Western political and moral philosophy.
Cicero, Augustine, Human Nature, State, Roman Political Philosophy

