Rule utilitarianism is a form of utilitarianism which states that moral actions are those which conform to the rules which lea to the greatest good, or that "the rightness or wrongness of a particular action is a function of the correctness of the rule of which it is an instance." For rule utilitarians, the correctness of a rule is determined by the amount of good it brings about when followed. In contrast, act utilitarians judge actions in terms of the goodness of their consequences without reference to rules of action. Another variation of rule utilitarianism stresses the greater utility of following a given rule in general, arguing that the practice of following some rule in all instances (always stopping at red lights, for example) will have better consequences overall than allowing exceptions to be made in individual instances, even if better consequences can be demonstrated in those instances.