  Some theorists have explored the capability approach by tying it to an objective account of human well-being or flourishing. The aim is to identify all of the functionings needed for human flourishing. For each of these functionings, the ideal is that each person should be sustained in the capability to engage in every one of these functionings at a satisfactory or good enough level. (See Nussbaum 1990, 1992, and 1999.)