The philosophers of ancient Greece in many cases served as the inspiration and focus for later political thinkers. Quite often, ancient thought served as the foundation for political theories that were adapted, modified, and coordinated with the then current historical and cultural contexts. The rise and establishment of Christianity is one such movement that helped bring the theories of old into a new light. Thomas Aquinas, a medieval theologian, philosopher, and Dominican monk, drew from the teachings and influences of Aristotle to help solidify his distinctly Christian political philosophies. A prime example is the tradition of natural law. While Aristotle did not explicitly develop this theory, Aquinas’ efforts toward this topic not only served to draw a connection between antiquity and Christianity, but also helped to credit Aristotle as being a primary contributor to the development of natural-law tradition.
Aristotle may not distinctly discuss natural law in depth, but the predecessor to this theory is evident within Book V of his Nicomachean Ethics, which primarily discusses justice. In the seventh chapter of this book Aristotle states that “of political justice part is natural, part legal…, that which everywhere has the same force and does not exist by people's thinking this or that…” (Aristotle ch. 7). Essentially Aristotle is arguing that there is a component of justice that transcends cultural or historical mediums. He continues to compare this natural view of justice to a more tangible example. “…By nature the right hand is stronger, yet it is possible that all men should come to be ambidextrous” (Aristotle ch. 7). There will always be an overriding sense of what is just and unjust, while specific legal matters are prone to change with the fluctuations of society. The Ethics is not his only work that discusses this, further augmenting his authority on the topic. In his Rhetoric, Aristotle also discusses the possibility of what is right according to a natural order. “…By general law, [I mean] all those unwritten principles which are supposed to be acknowledged everywhere” (Aristotle ch. 10). This further supports that Aristotle believed in an unchanging and universal system that governs all rational creatures.
While, never explicitly mentioning “natural law,” Aristotle does provide a base from which Aquinas expounds. While, Aquinas may be widely known for his predominantly political work On the Governance of Rulers, it is in his theological piece, Summa Theologica, that he illustrates what Wiser considers to be Aquinas’ “greatest contribution to legal theory,” otherwise noted as natural law (Wiser 122). This concept alone serves to identify the importance of the Christian belief system within even his political contributions. Ancient thinkers, such as Aristotle, utilized their rational sense to identify an undeniably natural order. Just as a fire will burn the same in Greece as it will in Persia, there are certain components of justice that are just as innate in the natural order (Aristotle ch. 7). Aquinas takes the same concept but simply rewrites it in a theological context.
For Aquinas, all laws have the same purpose: to instruct and motivate humanity to act in accordance with God’s original design. Yet he does not rule out the significance of reason that was so highly regarded by the ancient thinkers. Once again, Aquinas just changes the context. Laws are legitimate in that they receive their authority from the “divine order which determines the rational structure of the universe” (Wiser 122). Natural law, formerly identified as a product of reason, is now a product of God, the creator of the rational universe. By being rational participants in God’s rational world, humanity is exposed to natural law.
Aquinas’ natural law allows humanity to not only discern good from evil as well as to understand God’s intent in the world as is the purpose of all laws, but specifically concerns matters of the body and mind as well. “Natural law requires that [all humans] be concerned with self preservation and the preservation of the species through procreation and education” (Wiser 126). And yet, humans are also rational beings; therefore, natural law dictates that humans pursue knowledge of God in addition to participating in civilized society. These components are both broad and general, similar in fashion to Aristotle’s view on natural justice. Within Summa Theologica, Aquinas states that natural law is “both universal and nonparticular” (Wiser 126). However, there are some circumstances that require more depth than natural law can supply. In this sense natural law is transformed into a more conditional form. This again illustrates the similarity with Aristotle’s views on justice.
Overall, it is evident how natural law evolved and developed from Aristotle’s views on natural justice into Aquinas’ more defined concept of natural law. Both thinkers are bound together by the importance of the rational mind and the overall belief in a universal, unchanging sense of right and wrong regardless of the legal system at hand. Aquinas simply adds another level to the concept. Instead of claiming that it is reason alone that determines what is just versus unjust, Aquinas sheds a distinctly Christian light on the matter identifying God as the creator of the rational world, and thus the one who had dictated natural law. As a result, we have in Aquinas the continuation and Chriatianization of a concept that also permeated ancient Greek society through the work of Aristotle.
Aristotle may not distinctly discuss natural law in depth, but the predecessor to this theory is evident within Book V of his Nicomachean Ethics, which primarily discusses justice. In the seventh chapter of this book Aristotle states that “of political justice part is natural, part legal…, that which everywhere has the same force and does not exist by people's thinking this or that…” (Aristotle ch. 7). Essentially Aristotle is arguing that there is a component of justice that transcends cultural or historical mediums. He continues to compare this natural view of justice to a more tangible example. “…By nature the right hand is stronger, yet it is possible that all men should come to be ambidextrous” (Aristotle ch. 7). There will always be an overriding sense of what is just and unjust, while specific legal matters are prone to change with the fluctuations of society. The Ethics is not his only work that discusses this, further augmenting his authority on the topic. In his Rhetoric, Aristotle also discusses the possibility of what is right according to a natural order. “…By general law, [I mean] all those unwritten principles which are supposed to be acknowledged everywhere” (Aristotle ch. 10). This further supports that Aristotle believed in an unchanging and universal system that governs all rational creatures.
While, never explicitly mentioning “natural law,” Aristotle does provide a base from which Aquinas expounds. While, Aquinas may be widely known for his predominantly political work On the Governance of Rulers, it is in his theological piece, Summa Theologica, that he illustrates what Wiser considers to be Aquinas’ “greatest contribution to legal theory,” otherwise noted as natural law (Wiser 122). This concept alone serves to identify the importance of the Christian belief system within even his political contributions. Ancient thinkers, such as Aristotle, utilized their rational sense to identify an undeniably natural order. Just as a fire will burn the same in Greece as it will in Persia, there are certain components of justice that are just as innate in the natural order (Aristotle ch. 7). Aquinas takes the same concept but simply rewrites it in a theological context.
For Aquinas, all laws have the same purpose: to instruct and motivate humanity to act in accordance with God’s original design. Yet he does not rule out the significance of reason that was so highly regarded by the ancient thinkers. Once again, Aquinas just changes the context. Laws are legitimate in that they receive their authority from the “divine order which determines the rational structure of the universe” (Wiser 122). Natural law, formerly identified as a product of reason, is now a product of God, the creator of the rational universe. By being rational participants in God’s rational world, humanity is exposed to natural law.
Aquinas’ natural law allows humanity to not only discern good from evil as well as to understand God’s intent in the world as is the purpose of all laws, but specifically concerns matters of the body and mind as well. “Natural law requires that [all humans] be concerned with self preservation and the preservation of the species through procreation and education” (Wiser 126). And yet, humans are also rational beings; therefore, natural law dictates that humans pursue knowledge of God in addition to participating in civilized society. These components are both broad and general, similar in fashion to Aristotle’s view on natural justice. Within Summa Theologica, Aquinas states that natural law is “both universal and nonparticular” (Wiser 126). However, there are some circumstances that require more depth than natural law can supply. In this sense natural law is transformed into a more conditional form. This again illustrates the similarity with Aristotle’s views on justice.
Overall, it is evident how natural law evolved and developed from Aristotle’s views on natural justice into Aquinas’ more defined concept of natural law. Both thinkers are bound together by the importance of the rational mind and the overall belief in a universal, unchanging sense of right and wrong regardless of the legal system at hand. Aquinas simply adds another level to the concept. Instead of claiming that it is reason alone that determines what is just versus unjust, Aquinas sheds a distinctly Christian light on the matter identifying God as the creator of the rational world, and thus the one who had dictated natural law. As a result, we have in Aquinas the continuation and Chriatianization of a concept that also permeated ancient Greek society through the work of Aristotle.