 The cornerstone of this endeavor is the immanent conception of truth. Windelband repeatedly returns to discussing the correspondence theory of knowledge with its metaphor of a “mirror relation” between mind and object. He criticizes the misconception that our sensual perceptions are the things-in-themselves and that these things could be compared with our representations. Any comparison must occur between representations, since things and representations are “incommensurable” (1881: 130). According to Windelband, Kant’s central innovation consists in the insight that the truth of our judgments, and the relation of our representations to an object are not to be found in correspondence at all. Rather, it consists in the “rules” for combining representations (1881: 134). This leads Windelband to define truth as the “normality of thinking” (1881: 138)—with “normality” meaning that thinking proceeds in accordance with rules or norms. Windelband also conceptualizes the object of knowledge in terms of the rules of judgment. The object of knowledge is nothing other than 