 First, personal relationship goods realized in close relationships are constitutive of good lives (Liao 2006; Lynch et al. 2009; Gheaus 2009, 2017; Brownlee 2013, 2016a). This is perhaps most obvious for those goods that have an affective quality (that is, most of them). The largest longitudinal study in adult development to date (Vaillant 2012) indicates that personal relationships are—most likely thanks to the goods they generate—indispensable to subjective life satisfaction (but also positively correlated with other valuable outcomes such as longevity and health—see  3.2).  And an extensive study conducted by a team of philosophers and sociologists in Ireland revealed that close relationships and the unique goods they generate are for many adults the most important component of their life plans, or at least more important than other forms of advantage (Lynch et al. 2009). For children, too, some personal relationship goods, especially those available in parent-children relationships, are constitutive of good lives: it is hard to see how a good childhood could be (entirely) devoid of loving care from parental figures, kindness from adults in general and friendship with peers. Familial relationship goods—including the special sort of intimacy between parents and children and the unique fiduciary responsibility of parents—have also been said to be constitutive of (most) potential parents’ full flourishing (Brighouse &amp; Swift 2014). On this latter account, the goods have constitutive value in an objective sense.