In order to bring some clarification into the research of the morale problem, it is proposed to follow the broad classification of motives that is inherent in Freud's distinction of id, ego and superego systems. For instance, it is important to distinguish aggression as an id motive (the satisfaction of killing) from aggression as an ego motive (killing as a means to a larger end) or as a superego motive (Decatur's 'My country—may she always be right. But, right or wrong—my country'.). Id morale is 'good' from a short-sighted point of view, but exceedingly dangerous from a long-sighted one. Narcissistic ego morale is also undependable, because the conditions of self-interest are easily subject to change. The condition of the 'expanded ego morale' ('his pain is my pain') is of a profound and lasting sort. In this way it is hoped to construct a conceptual framework in terms of which the extreme complexity of the morale problem may be grasped and the danger of oversimplification avoided.