class and human practice

...we have to say first that there are no relations between literature and society in that abstracted way. The literature is there from the beginning as a practice in the society. Indeed until it and all other practices are present, the society cannot be seen as fully formed. A society is not is not fully available for analysis until each of its practices are included. But if we make that emphasis we must make a corresponding emphasis: that we cannot separate literature and art from other kinds of social practice, in such a way as to make them subject to quite special and distinct laws. They may have quite specific features as practices, but they cannot be separated from the general social process. Indeed one way of emphasizing this is to say, to insist, that literature is not restricted to operating in any one of the sectors I have been seeking to describe in this model. It would be easy to say, it is a familiar rhetoric, that literature operates in the emergent cultural sector, that it represents the new feelings, the new meanings, the new values. We might persuade ourselves of this theoretically, by abstract argument, but when we read much of literature, over the whole range, without the sleight-of-hand of calling Literature only that which we have already selected as embodying certain meanings and values at a certain scale of intensity, we are bound to recognize that the act of writing, the practices of discourse in writing and speech, the making of novels and poems and plays and theories, all this activity takes place in all areas of the culture. 
-Raymond Williams, "Base and Superstructure in Marxist Cultural Theory"