 A necessary condition of friendship, according to just about every view (Telfer 1970–71; Annas 1988, 1977; Annis 1987; Badhwar 1987; Millgram 1987; Sherman 1987; Thomas 1987, 1989, 1993; Friedman 1993, 1989; Whiting 1991; Hoffman 1997; Cocking &amp; Kennett 1998; and White 1999a, 1999b, 2001) is that the friends each care about the other, and do so for her sake; in effect, this is to say that the friends must each love the other. Although many accounts of friendship do not analyze such mutual caring any further, among those that do there is considerable variability as to how we should understand the kind of caring involved in friendship. Nonetheless, there is widespread agreement that caring about someone for his sake involves both sympathy and action on the friend’s behalf. That is, friends must be moved by what happens to their friends to feel the appropriate emotions: joy in their friends’ successes, frustration and disappointment in their friends’ failures (as opposed to disappointment in the friends themselves), etc. Moreover, in part as an expression of their caring for each other, friends must normally be disposed to promote the other’s good for her sake and not out of any ulterior motive. (However, see Velleman 1999 for a dissenting view.)