 In an interesting twist on standard accounts of the sense in which (according to Aristotle, at least) a friend is a mirror, Millgram (1987) claims that in mirroring my friend I am causally responsible for my friend coming to have and sustain the virtues he has. Consequently, I am in a sense my friend’s “procreator,” and I therefore find myself actualized in my friend. For this reason, Millgram claims, I come to love my friend in the same way I love myself, and this explains (a) Aristotle’s otherwise puzzling claim that a friend is “another self,” (b) why it is that friends are not fungible, given my role as procreator only of this particular person, and (c) why friendships of pleasure and utility, which do not involve such procreation, fail to be genuine friendships. (For more on the problem of fungibility, see  Section 2.1.)  However, in offering this account, Millgram may seem to confound my being causally necessary for my friend’s virtues with my being responsible for those virtues—to confound my passive role as a mirror with that of a “procreator,” a seemingly active role. Millgram’s understanding of mirroring does not, therefore, escape Cocking &amp; Kennett’s criticism of mirroring views as assigning too much passivity to the friend as mirror.