Chapter 1 argues that Heidegger, like many reconstructive interpreters, takes up the main question posed by the first Critique and attempts to identify Kant’s most plausible line of response to it, consulting the claims in Kant’s text alongside Heidegger’s own beliefs. Because Heidegger seeks to attribute true claims to Kant, his method of interpretation resembles that of Davidson and Gadamer. However, Heidegger improves on their method, because he recognizes the methodological role of disagreement in coming to agree with some author, thereby making room for differences in view between interpreter and text. He argues that we should expect great thinkers to struggle with their subject matter, offering competing strands of argument as they attempt to work out their view. The interpreter, therefore, must isolate the most promising strand of argument, differentiating it from less compelling arguments. Accordingly, Heidegger offers a two-strand interpretation of Kant that differentiates an insightful line of argumentation prioritizing imagination from a less promising line prioritizing understanding. Further, Heidegger offers a theory of error explaining why Kant struggles with his subject matter: Kant retreats to his less compelling argument due to the anxiety he experiences in uncovering the fundamental structure of the human being.