theoretical

one of Kant's three main standpoints, relating primarily to cognition--i.e., to what we know as opposed to what we feel or desire to do. Theoretical reason is concerned with questions about our knowledge of the ordinary world (the world science seeks to understand). Finding the source of such knowledge is the task of the first Critique, which would best be entitled the Critique of Pure 'Theoretical' Reason. (Cf. practical and judicial; see speculative.)