 Theories that limit themselves to the equal distribution of basic means, in the hope of doing justice to the different goals of all human beings, are often criticized as fetishistic, because they focus on means as opposed to what individuals gain with these means (Sen 1980). The value that goods have for someone depends on objective possibilities, the natural environment, and individual capacities. Hence, in contrast to the resourcist approach, Amartya Sen proposes orientating distribution around “capabilities to achieve functionings,” i.e., the various things that a person manages to do orbe in leading a life (Sen 1992). In other words, evaluating individual well-being has to be tied to a capability for achieving and maintaining various precious conditions and “functionings” constitutive of a person’s being, such as adequate nourishment, good health, the ability to move about freely or to appear in public without shame. The real freedom to acquire well-being is also important here, a freedom represented in the capability to oneself choose forms of achievement and the combination of “functionings.” For Sen, capabilities are thus the measure of an equality of capabilities human beings enjoy to lead their lives. A problem consistently raised with capability approaches is the ability to weigh capabilities in order to arrive at a metric for equality. The problem is intensified by the fact that various moral perspectives are blended in the concept of capability (Cohen 1993, p. 17–26, Williams 1987). Martha Nussbaum (1992, 2000) has linked the capability approach to an Aristotelian, essentialistic, “thick” theory of the good – a theory meant to be, as she puts it, “vague,” incomplete, and open-ended enough to leave place for individual and cultural variation. On the basis of such a “thick” conception of necessary and universal elements of a good life, certain capabilities and functionings can be designated as foundational. In this manner, Nussbaum can endow the capability approach with a precision that furnishes an index of interpersonal comparison, but at the risk of not being neutral enough regarding the plurality of personal conceptions of the good, a neutrality normally required by most liberals (most importantly Rawls 1993; but see Robeyns 2009 for a different take on the comparison with Rawls). For further discussion, see the entry on the  capability approach.