Recall the second commonplace, as discussed in Chapter 2: The man lives in two worlds - the world of nature and the world of culture. This dual nature of our environment and can be viewed from a different angle. Man lives in two worlds - the world of things and the world of signs. Things, by both nature and man himself - the material substratum of our world. Peace signs, has a much greater variety, is associated with things, but complex, fluid and often elusive relationship (eg, "Not for Sale inspiration, but you can sell a manuscript"). Even a child with a special kind of familiar characters, as money (which arose just in time to connect the world of things and the world of signs), is full of secrets. Since its inception the money are the subject of debate among philosophers, poets, kings and beggars. Money is full of mysteries and ancient become an inexhaustible source of tricks and manipulations.