We attempt to derive Marx's theory of class through the way he uses the terms, rather
than through an interpretation of his most general statements on the subject, which
is how class has usually been approached. "Class" is seen to refer to social and
economic groupings based on a wide variety of standards whose interrelations are
those Marx finds in the real society under examination. By conceptualizing a unity
of apparently distinct social relations, "class" in Marxism is inextricably bound
up with the truth of Marx's own analysis. Its utility is a function of the adequacy
of this analysis.