The pure normative standpoint that Kant’s ethics tries to occupy, a standpoint in which we consider only the normatively relevant features of a possible world, abstracting strictly from the real world and the empirical accidents of concrete situations, is an expression of what Dewey called “the quest for certainty.†In an insecure world, weak humans struggle convulsively to reach some kind of stability; the a priori is an overcompensation in thought for experienced human weakness. This is one of the origins of Kant’s notorious rigidity, his authoritarian devotion to “principles,†and his tendency to promote local habits of thought to constituents of the absolute framework in which alone (purportedly) any coherent experience was possible; thus, Euclidean geometry is declared the a priori condition of human experience, and sadistic remnants of Puritanism become demands of pure practical reason. Classical liberalism rejected Kant’s practical philosophy, but perhaps this is not enough. Perhaps one should also reject the very idea of a pure normative standpoint.
Raymond Geuss