“ The claim of the ability to cure may be vastly greater than most men would be ready to admit, and yet those who might deny the existence or virtue of the remedy would only differ in opinion from those who assert it. There is no exact standard of absolute truth by which to prove the assertion false and a fraud. ”

“ As the effectiveness of almost any particular method of treatment of disease is, to a more or less extent, a fruitful source of difference of opinion, even though the great majority may be of one way of thinking, the efficacy of any special method is certainly not a matter for the decision of the Postmaster General within these statutes relative to fraud. ”

“ We may not believe in the efficacy of the treatment to the extent claimed by complainants, and we may have no sympathy with them in such claims, and yet their effectiveness is but matter of opinion in any court. ”

“ The bill in this case avers that those who have business with complainants are satisfied with their method of treatment, and are entirely willing that the money they sent should be delivered to the complainants. In other words, they seem to have faith in the efficacy of the complainants' treatment, and in their ability to heal as claimed by them. If they fail, the answer might be that all human means of treatment are also liable to fail, and will necessarily fail when the appointed time arrives. There is no claim that the treatment by the complainants will always succeed. ”

“ It is a question of opinion in all the cases, and although we may think the opinion may be better founded and based upon a more intelligent and a longer experience in some cases than in others, yet after all, it is, in each case, opinion only, and not existing facts with which these cases deal. ”

“ That the conduct of the postoffice is a part of the administrative department of the government is entirely true, but that does not necessarily and always oust the courts of jurisdiction to grant relief to a party aggrieved by any action by the head, or one of the subordinate officials, of that Department, which is unauthorized by the statute under which he assumes to act. The acts of all its officers must be justified by some law, and in case an official violates the law to the injury of an individual the courts generally have jurisdiction to grant relief. ”

“ The Land Department of the United States is administrative in its character, and it has been frequently held by this court that, in the administration of the public land system of the United States, questions of fact are for the consideration and judgment of the Land Department, and its judgment thereon is final. ”

“ Again, there are many persons who do not believe in the homeopathic school of medicine, and who think that such doctrine, if practised precisely upon the lines set forth by its originator, is absolutely inefficacious in the treatment of diseases. ”

“ And it is said that nature may itself, frequently, if not generally, heal the ills of the body without recourse to medicine, and that it cannot be doubted that in numerous cases nature, when left to itself, does succeed in curing many bodily ills. ”

“ Here it is contended that the Postmaster General has, in a case not covered by the acts of Congress, excluded from the mails letters addressed to the complainants. His right to exclude letters, or to refuse to permit their delivery to persons addressed, must depend upon some law of Congress, and if no such law exists, then he cannot exclude or refuse to deliver them. ”

“ There are, as the bill herein shows, many believers in the truth of the claims set forth by complainants, and it is not possible to determine as a fact that those claims are so far unfounded as to justify a determination that those who maintain them and practise upon that basis obtain their money by false pretenses within the meaning of these statutes. ”

“ It is therefore admitted that the business of the complainants is founded 'almost exclusively on the physical and practical proposition that the mind of the human race is largely responsible for its ills, and is a perceptible factor in the treating, curing, benefiting, and remedying thereof, The Assessor v. ”