Martha Nussbaum, however, is critical of Rawls' approach. She points out that the sufferings of individuals, not those of the impersonal states, form the moral foundations of humanitarian intervention. Therefore, the concept of "well-ordered society," by falsely focusing on the state rather than individuals, cannot determine whether an intervention is justified. Instead, Nussbaum proposes a more concrete standard based on human capabilities (see Capability approach). She argues that "ational sovereignty should be respected, within the constraints of promoting human capabilities". In other words, if a state fails to provide its citizens the basic "capabilities," such as the capability to live a healthy life, then outside intervention is justified.