What is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message?
Hidden message Hidden message A hidden message is information that is not immediately noticeable, and that must be discovered or uncovered and interpreted before it can be known. Hidden messages include backwards audio messages, hidden visual messages and symbolic or cryptic codes such as a crossword or cipher. Although there are many legitimate examples of hidden messages created with techniques such as backmasking and steganography, many so-called hidden messages are merely fanciful imaginings or apophany. The information in hidden messages is not immediately noticeable; it must be discovered or uncovered, and interpreted before it can be known. Hidden messages include backwards audio
Persecution and the Art of Writing and Man" – 1964)—is that prior to the 19th century, Western scholars commonly understood that philosophical writing is not at home in any polity, no matter how liberal. Insofar as it questions conventional wisdom at its roots, philosophy must guard itself especially against those readers who believe themselves authoritative, wise, and liberal defenders of the status quo. In questioning established opinions, or in investigating the principles of morality, philosophers of old found it necessary to convey their messages in an oblique manner. Their "art of writing" was the art of "exoteric" communication. This is all the more apparent in medieval