 According to BonJour, intuition is a direct grasp or “rational insight” into “the necessary character of reality” (1997: 107). This occurs when we “see or grasp or apprehend in a seemingly direct and unmediated way” (1997: 101) the necessity of a proposition. This grasping “depends upon nothing beyond an understanding of the propositional content itself” (1997: 102). By explicitly providing knowledge of necessity, intuition, as cashed out by BonJour, is thus a main source of modal knowledge.