"The happiest excitement in life is to be convinced that one is fighting for all one is worth on behalf of some clearly seen and deeply felt good, and against some greatly scorned evil."

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It is easy to make light of insistence on scrupulous regard for the safeguards of civil liberties when invoked on behalf of the unworthy. It is too easy. History bears testimony that by such disregard are the rights of liberty extinguished, heedlessly at first, then stealthily, and brazenly in the end.

— Felix Frankfurter