 It took a long time before Althusser explicitly addressed the charge that he had ignored much of what Marx had to say about his own logic and concepts. However, buffeted by these criticisms and with a sense that there were idealist or “theoreticist” tendencies in his reading of Marx and that the relationship between theory and practice was indeed under-developed, Althusser set out during the late 1960s and 1970s to correct and revise his take on the relationships among philosophy, science, ideology, and politics. To some readers, these revisions represented a politically motivated betrayal of his theoretical accomplishments. For others, they simply revealed his project as a whole to be untenable and self-contradictory. Some recent critics, however, have argued that these revisions are consistent with and necessary to the development of what they view to be the overall goal of Althusser’s work: the development of a materialist political philosophy adequate for political practice.