In Chapter 3, we tracked James’s references to “pluralism” across the course of his writing and correspondence. Doing so, we saw that James developed his pluralistic philosophy from his early essays in the 1880s through his psychological explorations in the Principles and Varieties and then into his most mature contributions. We believe that this developmental “tracking” is highly informative. By following his uses of “pluralism” in this way, noting where it appears, the intended purposes for which it is employed, and especially the terms with which it is associated and those with which it contrasts, it becomes clear that “pluralism” is a very complex notion or set of notions, acquiring subtly different meanings in different contexts.