Consider the language of the law. On what principles do landmark rights cases hinge? In Brown: “It is doubtful that any child may reasonably be expected to succeed in life if he is reasonably denied the opportunity of an education. Such an opportunity, where the state has undertaken to provide it, is a right that must be made available to all on equal terms.” Six decades later, in United States v. Windsor: “The power the Constitution grants it also restrains. And although Congress has great authority to design laws to fit its own conception of sound national policy, it cannot deny the liberty protected by the Due Process Clause of the Fifth Amendment.” The principles and justifications driving these decisions, the Court argues, apply universally.