The right to be let alone is indeed the beginning of all freedom.

A people who extend civil liberties only to preferred groups start down the path either to dictatorship of the right or the left.

Men need to know the elemental challenges that sea and mountains present. They need to know what it is to be alive and to survive when great storms come. They need to unlock the secrets of streams, lakes, and canyons and to find how these treasures are veritable storehouses of inspiration. They must experience the sense of mastery of adversity. They must find a peak or a ridge that they can reach under their own power alone.

Thus if the First Amendment means anything in this field, it must allow protests even against the moral code that the standard of the day sets for the community. In other words, literature should not be suppressed merely because it offends the moral code of the censor.

World federation is an ideal that will not die. More and more people are coming to realize that peace must be more than an interlude if we are to survive; that peace is a produce of law and order; that law is essential if the force of arms is not to rule the world.

Ideas are indeed the most dangerous weapons in the world. Our ideas of freedom are the most powerful political weapons man has ever forged.

Any test that turns on what is offensive to the community's standards is too loose, too capricious, too destructive of freedom of expression to be squared with the First Amendment. Under that test, juries can censor, suppress, and punish what they don't like, provided the matter relates to "sexual impurity" or has a tendency "to excite lustful thoughts." This is community censorship in one of its worst forms. It creates a regime where, in the battle between the literati and the Philistines, the Philistines are certain to win.