 Derek Parfit has coined the term “objective list theories” to refer to accounts that assess well-being in terms of a set of goods and activities that are objectively good for people (Parfit 1984: 493ff). Some of the more contentious questions about the relationship between disability and individual well-being concern what objective goods are indispensable for a good life and at what level of generality they should be described. Although “objective list theories” may suggest a simple checklist, they are better seen as recognizing (i) that there is an irreducible plurality in the goods of life and (ii) that their contribution to well-being cannot be expressed in terms of a common metric, like utility. Both (i) and (ii) distinguish objective list theories as a special case of objective or substantive-good theories of well-being. Martha Nussbaum, an influential objective list theorist, includes the following among her valuable capabilities and functionings: health, nourishment, shelter, sex, mobility; the ability to use one’s senses and to imagine, think, and reason; family and other relationships, attachments and love; living a life one has thought about and in some way chosen; laughter, play, and living in contact with the natural world (Nussbaum 1998: 135–156). It is difficult to see what unifies all these different categories, but item by item there would probably be widespread agreement on their value and importance for individual well-being. 