"Obviously, Tony never became a Marxist even when he soon after decided to champion social democracy as his last act. But these comments were a far cry from his former dismissal of Marxism as a delusional politics with theory playing only the role of indefensible apologetics for terror. All the same, Tony did not feel that his standard bearing for social democracy required much more than moralistic rhetoric in its defense. His grudging admission of Marxism’s relevance for social democracy in the past did not lead him to insist on some new theory justifying his politics now. (In fact, Tony feared that given continuing injustice the most likely outcome for the foreseeable future was Marxism’s revival in theoretical debates.) Tony doesn’t appear to have contemplated that his struggle to reinvent the model of the intellectual committed him, if only to ward off Marxism, to some other return to the tradition of social thought that had defined “theory” until postmodern intellectuals gave the word a different meaning and bad name."
January 1, 1970
https://en.wikiquote.org/wiki/Marxism