Final answer:
Supreme Court Justice Felix Frankfurter once wrote that 'the history of liberty has largely been the history of the observance of procedural guarantees.' This emphasizes the importance of procedural protections in safeguarding individual freedoms.
Step-by-step explanation:
Supreme Court Justice Felix Frankfurter once wrote that 'the history of liberty has largely been the history of the observance of procedural guarantees.' This statement emphasizes the importance of procedural protections in safeguarding individual freedoms throughout history. It highlights that the due process of law, which ensures fair treatment and access to justice, has played a significant role in preserving our civil liberties.