Kant's Critique of Instrumental Reason

I argue against the prevalent view that in addition to the categorical imperative of morality, Kant accepts a further law of practical reason, ‘the’ Hypothetical Imperative. Kant rejects the idea that instrumental reason can be a source of a priori, objectively necessary normative requirements. His critique of instrumental reason is a central component of his argument for the supreme rational authority of morality: only moral reason can provide genuine, objective normative‐practical necessities. There are no objective practical necessities in our pursuit of empirical ends and desires. Hence, non‐moral agency is a rationally impoverished form of agency.