evidence: Scientific enquiry assumes that the world forms a well-ordered, systematic unity where all events can be subsumed under causal laws. This is not just the idea that events have causes—an inescapable assumption that Kant refers to as a category of the understanding. Rather, the claim is that universal laws underlie all particular relations of cause and effect. This is what Kant has in mind when he speaks of the "unity of reason" in the first Critique. (See e.g. A302/B359, A665/B693, A680/B780.) [...] In the Preface to the second edition of the Critique, Kant makes a famous claim: "I had to deny knowledge in order to make room for faith" (Bxxx). Human beings cannot have knowledge of the world as a whole. They cannot know entities that transcend this world, such as the immortal soul or God. We cannot experience these things through our senses; reason cannot supply such knowledge. However, Kant argues that knowledge is not the primary end of reason. Only our role within the world "necessarily interests everyone" (A839n/B867n). Kant rejects a "scholastic" or knowledge-oriented notion of philosophy. Instead, he offers a "cosmic" or world-oriented one (A838/B866; cf. Ypi 2021: Ch. 1 and Ferrarin 2015).