This paper asks how we find our way in the hitherto unknown. In search of an answer, the author returns to the three Critiques of Immanuel Kant, noting especially their grounding in the geometric mode of (re)presentation and the thingification processes connected therewith. It is argued that Kant's choice of metaphors in effect makes him more of a geographer than of a philosopher. To understand the taken-for-granted of thought-and-action, the time has therefore come for the writing of a fourth volume (...) entitled A Critique of Cartographical Reason. The focus must there be on the relations between personal pronouns and prepositions, on the one hand, and the powers of tautology, on the other. (shrink)