“ On the contrary, we find only an effort to persuade a willing listener to buy a book or to contribute money in the interest of what Cantwell, however misguided others may think him, conceived to be true religion.
In the realm of religious faith, and in that of political belief, sharp differences arise. In both fields the tenets of one man may seem the rankest error to his neighbor. To persuade others to his own point of view, the pleader, as we know, at times, resorts to exaggeration, to vilification of men who have been, or are, prominent in church or state, and even to false statement. ”

“ Conduct remains subject to regulation for the protection of society. [4] The freedom to act must have appropriate definition to preserve the enforcement of that protection. In every case the power to regulate must be so exercised as not, in attaining a permissible end, unduly to infringe the protected freedom. No one would contest the proposition that a state may not, be statute, wholly deny the right to preach or to disseminate religious views. ”

“ Nowhere is this shield more necessary than in our own country for a people composed of many races and of many creeds. There are limits to the exercise of these liberties. The danger in these times from the coercive activities of those who in the delusion of racial or religious conceit would incite violence and breaches of the peace in order to deprive others of their equal right to the exercise of their liberties, is emphasized by events familiar to all. ”

“ A statute authorizing previous restraint upon the exercise of the guaranteed freedom by judicial decision after trial is as obnoxious to the Constitution as one providing for like restraint by administrative action. [7]
Nothing we have said is intended even remotely to imply that, under the cloak of religion, persons may, with impunity, commit frauds upon the public. Certainly penal laws are available to punish such conduct. Even the exercise of religion may be at some slight inconvenience in order that the state may protect its citizens from injury. ”

“ When clear and present danger of riot, disorder, interference with traffic upon the public streets, or other immediate threat to public safety, peace, or order, appears, the power of the state to prevent or punish is obvious. ”

“ Without doubt a state may protect its citizens from fraudulent solicitation by requiring a stranger in the community, before permitting him publicly to solicit funds for any purpose, to establish his identity and his authority to act for the cause which he purports to represent. ”

“ But the people of this nation have ordained in the light of history, that, in spite of the probability of excesses and abuses, these liberties are, in the long view, essential to enlightened opinion and right conduct on the part of the citizens of a democracy. ”

“ We hold that, in the circumstances disclosed, the conviction of Jesse Cantwell on the fifth count must be set aside. Decision as to the lawfulness of the conviction demands the weighing of two conflicting interests. The fundamental law declares the interest of the United States that the free exercise of religion be not prohibited and that freedom to communicate information and opinion be not abridged. The state of Connecticut has an obvious interest in the preservation and protection of peace and good order within her borders. ”

“ Resort to epithets or personal abuse is not in any proper sense communication of information or opinion safeguarded by the Constitution, and its punishment as a criminal act would raise no question under that instrument. ”