sentences:  At the same time, however, the shoes produced have certain social or cultural values as well.In this way, the worker's labor is mediating between the economic or exchange-value of the shoes, and their social or cultural, or symbolic value.In media studies, thinkers like Marshall McLuhan treat "the medium is the message" or the medium of a given social object (such as a book, CD, or television show) as the touchstone for both the cultural and material elements of the society in which this object exists.