What justifies our holding a person morally responsible for some past action? Why am I justified in having a special prudential concern for some future persons and not others? Why do many of us think that maximizing the good within a single life is perfectly acceptable, but maximizing the good across lives is wrong? In these and other normative questions, it looks like any answer we come up with will have to make an essential reference to personal identity. So, for (...) instance, it seems we are justified in holding X responsible for some past action only if X is identical to the person who performed that action. Further, it seems I am justified in my special concern for some future person only if he will be me. Finally, many of us think that while maximization within a life affects only one person, a metaphysical unity, maximization across lives affects many different, metaphysically distinct, persons, and so the latter is wrong insofar as it ignores this fundamental separateness of persons. (shrink)

Christine Korsgaard bases her interpretation of personal identity upon the notion of moral agency and thereby refutes the Reductionist thesis of Derek Parfit. Korsgaard indicates that actions and choices, from the practical standpoint, must be viewed as having agents and choosers. This is what makes them our own actions and choices as well as contributes to the process of self-constitution. Personal identity manifested as the chooser of our desires and author of our actions can be viewed as the common denominator (...) between Korsgaard and Wang Yangming (王陽明). For liangzhi (良知) is none other than the agency that acts as the capacity for moral judgment and the motivation of performing moral actions. Given liangzhi is the authentic self that make laws for us, our true identities are exhibited in the performance of moral behaviors. Moreover, further engagement between the two sides reveals that Wang’s characterizations of liangzhi, particularly those of practical justification, law-embodying identity, and zhih –zhi (致知), can be seen as either a complement to practical standpoint argument or an approach of consummating self-constitution. (shrink)