 In addition to simply providing criteria for right or virtuous action, or for being a virtuous person, a given moral theory, for example, will attempt to explain why something, like an action or character trait, has a particular moral quality, such as rightness or virtuousness. Some theories view rightness as grounded in or explained by value. Some view rightness as a matter of reasons that are prior to value. In each case, to provide an explanation of the property of ‘rightness’ or ‘virtuousness’ will be to provide an account of what the grounding value is, or an account of reasons for action.