 Green claims that a rational agent’s interest in others is rooted in her search for a “permanent” good (PE §§223, 229–32, 234). Moral personality requires impulse control and the abilities to distinguish myself from my appetites and to frame the question what it would be best for me—a temporally extended agent—on the whole to do. This will involve endorsing some goals as good and as worth making short-term sacrifices or investments for. This is to value goals and projects in which I am involved that have some degree of permanence. Green seems to think that the right sort of association with others extends this permanence in a natural way—indeed, that it provides a kind of counter-balance to mortality or surrogate for immortality.