... show him the value in his business—as in all else in life—of the standard thing, the genuine thing, the thing that will bear the test as contrasted with the shoddy, or the inferior, or the spurious. ... Nearly all the individual works in the collection are in the public domain in the United States. If an individual work is in the public domain in the United States and you are located in the United ... equal with the law, medicine, and the ministry in the list of the professions; that is to say, in the group of callings which, under my definition, are distinguished especially by their public...