A distinguishing characteristic of 'Western Marxism', it is said, has been a separation of theory and practice which has followed inevitably upon the separation of Marxist intellectuals from a revolutionary mass movement.' The result has been a Marxism more at home in the Academy than in the arenas of political struggle. Nevertheless, to say that theory has become divorced from revolutionary practice and from the realities of workingclass politics is not necessarily to say that theory has no implications for practice. In fact, many theoretical innovations in contemporary Marxism, for all their philosophical abstraction, have been intended precisely as political statements. In some cases, the theoretical divorce from working class politics r...