This chapter provides a thematic analysis of some of the most significant applications of probabilism to a number of epistemological, intellectual, political, and theological questions. It focuses on four early seventeenth-century authors, each using probabilism to advance a specific intellectual agenda: Tomás Sánchez and his effort to articulate probability as a trait d’union between conscience and law in the context of his elaboration on the doctrine on marriage; Leonardus Lessius and his attempt to use probabilism to update Catholic doctrine and especially Catholic economic thought; Juan Azor and his endeavor to structure probabilism within a stable and coherent system of knowledge; and Emmanuel Sa and his vulgarization of probabilism for the sake of confessors and other readers who did not necessarily have a deep background in, and extensive knowledge of, moral theology.
