The fundamental flaw in championing a "jurisprudence of the heart" is the dangerous assumption that the purpose of a legal system is to validate the internal moral landscape of its participants. To suggest that justice cannot be served because every character is "right" according to their own values is to confuse the therapeutic with the judicial. In reality, a centralized legal system does not exist to resolve moral dilemmas; it exists to prevent the blood feuds that inevitably arise when subjective "truths" collide.
## The Blind Spot of Value Pluralism
The argument for value pluralism in *A Separation* fails to account for the primary function of law: the establishment of social order through predictable rules. If justice were required to reconcile every participant’s subjective integrity, the legal system would cease to be a system and become a chaotic mirror of individual ego. The philosopher Thomas Hobbes famously argued in [Leviathan](https://www.gutenberg.org/files/1103/1103-h/1103-h.htm) that without a centralized, sovereign power to impose objective standards, society devolves into a state of perpetual conflict.
> "To this war of every man against every man, this also is consequent; that nothing can be unjust. The notions of right and wrong, justice and injustice, have there no place. Where there is no common power, there is no law; where no law, no injustice."
By focusing on the "rightness" of each character’s motives, we overlook the fact that their actions—lying, withholding evidence, and physical confrontation—create objective harms. Justice is not about empathy for the perpetrator’s dilemma; it is about the adjudication of these harms against a communal standard.
## The Case for Legal Positivism
Against the "jurisprudence of the heart," we must place the framework of **Legal Positivism**. Thinkers like [H.L.A. Hart](https://plato.stanford.edu/entries/legal-positivism/) argued that the validity of a law is not dependent on its moral "correctness," but on its formal enactment within a legal system. In his seminal work, *The Concept of Law*, Hart suggests that "it is in no sense a necessary truth that laws reproduce or satisfy certain demands of morality."
The tragedy in Farhadi’s film is not a failure of the centralized system to understand the characters; it is the characters' failure to adhere to the objective requirements of the law. When Nader lies about his knowledge of Razieh’s pregnancy, he is not merely exercising a "value" of self-protection; he is subverting the procedural fairness upon which all social cooperation depends.
## The Danger of Moral Autonomy
The critique of centralized justice assumes that a decentralized, "values-based" approach would be superior. However, history shows that when legal systems defer to individual moral codes, the result is the dominance of the powerful over the weak. A "heart-based" justice system would be inherently biased, favoring those whose values align most closely with the arbiter.
Centralized law serves as a necessary, if cold, intervention. It provides an "artificial reason" that transcends personal grievances. Without the rigid, often frustrating boundaries of the law, the "separation" depicted in the film would not end in a courtroom, but in a never-ending cycle of private vengeance. Justice is served not when everyone feels understood, but when the rule of law remains standing after the emotions have been spent.