I propose an account of how our forward-looking moral and epistemic responsibility practices arose, how they related to backward-looking responsibility practices, and what makes them stable. This account differs in several ways from prominent theories already in the literature. Traditionally, forward-looking accounts of responsibility are framed third-personally in terms of social control and neglect the perspective and agency of the responsible person. The account I develop allows that there are third-personal, control-based aspects of our responsibility practices, but it also makes (...) room for the first-personal perspective of the responsible agent and emphasizes the role of partner choice and cooperative planning and action. Whereas existing research focuses on forward-looking accounts of the practice of holding others responsible, I offer an account of forward-looking practices of taking responsibility and assigning responsibility. I hope thereby to provide a richer and more plausible framework in which to think about responsibility and our practices related to it. (shrink)