The modern understanding of this term is largely defined by the 1958 . Fidelity to Law and the Moral Pluralism Premise

In legal philosophy, refers to the moral and professional commitment of individuals—particularly judges, lawyers, and citizens—to respect and uphold the authority of a legal system . Far from simple obedience to a set of rules, it is an ideal that links the existence of law to the moral purpose it serves in society. The Philosophical Roots: Lon Fuller vs. H.L.A. Hart