Commonly described as fairness, but more closely aligned to the concept of "desert" (pronounced like, but not to be confused with, "dessert" of the ice-cream et al variety): One has acted justly toward a person when one gives that person what is due or owed, and therefor what is deserved. Common to all definitions of justice is the minimal principle that relevantly similar cases (persons) be treated alike. Unfortunately, the definition of "relevantly similar" is not always self-evident.