The author considers Cooper's notion of the pluralistic third from several angles as Cooper's use of the term covers a range of applications from that of an internal supervisor to the use of ideas from psychoanalytic traditions other than one's own in evaluating one's clinical work. The impression created of the American situation is contrasted with the institutionalized pluralism of the British Psychoanalytical Society since the Second World War. The author believes that the theoretical question of the analyst's accountability to a professional authority is overdetermined in the paper because the clinical material is dominated by the patient's problems in facing up to parental authority. A crucial enactment is seen as starting at the analyst's first contact with the patient, which seems to subvert the analyst's capacity to be an authority figure. The analyst finds a working relationship with his own psychoanalytic authority in the second session of the analysis but seems to lose it through an overextension of the ideas of “play,” self-questioning, and the seeking of agreement between patient and analyst. The author considers the clinical material from the point of view that his peer supervision group would take.