This Article, which explores the nature of fiduciary relationships, demonstrates that these relationships arise and function in ways that are alien to contractualist thought. While the relationships may, like marriage relationships, be part of the same genus, they are indeed members of a different species. Fiduciary relationships differ both in doctrinal structure and ethical basis. However, some contractualist writing denies one or the other of these two propostitions. This Article, therefore, aims to establish that both are in fact true. The author presents that fiduciary relationships have value and serve purposes that are largely unknown to contractualists. Furthermore, these relationships facilitate the doing of justice, promote virtue...