If every case is "special," then no case is "legal." To abandon the principle of generality in favor of equity, realism, or the "state of exception" is not to humanize the law, but to dissolve it entirely. Without the rigid skeleton of general rules, justice becomes nothing more than **particularism**—a system where the outcome depends less on the law and more on who happens to be sitting on the bench.
## The Mirage of Equity: The "Chancellor’s Foot"
While Aristotle’s *epieikeia* (equity) seeks to soften the law, it inadvertently introduces a fatal instability. Critics of equity argue that it replaces the "rule of law" with the "rule of men." In the history of English jurisprudence, this was famously decried as the problem of the "Chancellor’s Foot."
> "Equity is a roguish thing: for law we have a measure... equity is according to the conscience of him that is Chancellor, and as that is larger or narrower, so is equity. 'Tis all one as if they should make the standard for the measure we call a foot, a Chancellor's foot."
> — John Selden, [*Table Talk*](https://en.wikipedia.org/wiki/Table_Talk_(Selden))
When we prioritize the "spirit" over the "letter," we grant judges the power to rewrite the social contract in real-time. This destroys the **predictability** necessary for a free society. If a citizen cannot look at a general rule and know how it will be applied, they are not a subject of law, but a victim of whim.
## The Consistency of the Core: Rebutting Legal Realism
[Legal Realism](https://plato.stanford.edu/entries/legal-realism/), as proposed by Jerome Frank, suggests that rules are merely "hunches" masked by logic. However, H.L.A. Hart, in his seminal work [*The Concept of Law*](https://plato.stanford.edu/entries/hart-dl/), identifies this as a "rule-scepticism" that ignores the vast "core" of settled law.
Hart argues that while there is a "penumbra" of doubt in difficult cases, the "core" of legal rules provides a shared, internal standard of behavior. If law were truly just "what the judge ate for breakfast," the legal system would have collapsed centuries ago. The fact that the majority of legal interactions—contracts, property transfers, and traffic laws—function without litigation proves that generality is not a myth, but a functional reality. The Realists mistake the 5% of "hard cases" for the 95% of the law's daily operations.
## The Trap of the Exception
Carl Schmitt’s fascination with the "State of Exception" is often framed as a realistic appraisal of power. Yet, from the perspective of [Legal Formalism](https://en.wikipedia.org/wiki/Legal_formalism), the exception is not the "essence" of law; it is its failure. To define law by the moment it is suspended is like defining a bridge by the moment it collapses.
By centering the "exception," we legitimize the erosion of constitutional safeguards. As [Joseph Raz](https://plato.stanford.edu/entries/rule-of-law/) argues in his theory of the **Rule of Law**, the primary virtue of a legal system is its ability to guide behavior. A system that prizes the exception over the general rule ceases to guide; it merely commands. In the end, the "friction of reality" is not a reason to abandon abstract rules—it is the very reason we must hold onto them. Without the general rule, the "moral cost" of justice is not shared; it is simply handed to whoever holds the most power in the moment.