In this paper I explore the possibility of the client's personal ethics serving as a guide for therapeutic direction. Many therapeutic models promote ethical values built on the platform of principles of universality, rationality, or science. But from a poststructural Foucauldian perspective, these can amount to a form of imposition. This paper suggests that the client's unique life experiences enable the construction of personal values, which we, as therapists, might honor in preference to our own, or those of our culture or profession. A case study demonstrates that ethical subjectivity is an emergent property of the individual, entailing a reflexive, critical engagement with the ways in which he or she has been constructed via social and power dynamics. Thus, the ethical subject is active in its own constitution: it identifies the principles according to which it strives to organize its conduct; this subject focuses its attention to render these principles visible and usable in relevant social and personal circumstances; it fortifies its position to effectively deal with inevitable oppositions; and its mode of social functioning is intensified in the process. I use these points to arrive at a vision of an active, self-producing subject, who nevertheless lives within the constraints of discourse and power formations articulated by Foucault. The relevance of this ethical subject for therapeutic practice is considered.