What is the meaning of "ratio" in Cicero's arguments regarding justice?

In Cicero's works, particularly in his discussions about justice, "ratio" translates to "reason." This concept is significant because Cicero emphasizes the importance of rational thought and logical reasoning in moral and ethical discussions. He argues that true justice is grounded in reasoned analysis rather than mere emotional impulses or subjective beliefs. Cicero posits that through rationality, individuals can discern what is fair and just, leading to a more orderly and ethical society. This focus on reason aligns with broader philosophical traditions, including Stoicism, where rationality is central to understanding and implementing justice. Thus, the choice of "reason" reflects not only the literal meaning of the term "ratio" but also its deeper philosophical implications in Cicero's rhetoric about justice.