Authors have a greater right than any copyright, though it is generally unacknowledged or disregarded. They have a right to the reader's civility. There are favorable hours for reading a book, as for writing it, and to these the author has a claim. Yet many people think that when they buy a book they buy with it the right to abuse the author.
Henry Wadsworth Longfellow (1872). “Kavanagh: And Other Pieces”, p.364