 Holistic accounts of social institutions often invoke the terminology of internal and external relations (Bradley 1935). An internal relation is one that is definitive of, or in some way essential to, the entity it is a relation of; by contrast, external relations are not in this way essential. Thus being married to someone is an internal relation of spouses; if a man is a husband then necessarily he stands in the relation of being married to someone else. Likewise, if someone is a judge in a court of law then necessarily he stands in an adjudicative relationship to defendants. Evidently, many institutional roles are possessed of, and therefore in part defined by, their internal relations to other institutional roles.