In his investigation of the grounds of logic, Heidegger does not merely plunge into an interpretation of Kant without prior orientation. An initial question is required as a basis for the forthcoming discussion. We can best orient ourselves by examining Heidegger's initial question, and following his questioning as it leads into an interpretation of Kant. As is typical of Heidegger's writings of this period,¹ he chooses to begin his interpretation of Kant with a discussion of the nature of class="EmphasisTypeItalic ">science. The topic of science is especially fruitful, as it questions how we have knowledge of objects, and thus leads directly to more general questions about the role of logic in truth.