 Philosophers have long been interested in epistemic rights in particular (Altschul 2010 (Other Internet Resources), Graham and Pedersen 2012), though there is also skepticism about this category (Glick 2010). William James, for instance, calls The Will to Believe, “an essay in justification of faith, a defense of our right to adopt a believing attitude in religious matters, in spite of the fact that our merely logical intellect may not have been coerced.” James’s “radical” conclusion in the essay is that “we have the right to believe at our own risk any hypothesis that is live enough to tempt our will” (James 1897, 2, 29). Similarly, the deepest questions in Kant’s philosophy are framed in terms of rights. In the Critique of Pure Reason, the Transcendental Deduction of the Categories aims to prove the validity of the employment of the concepts of pure understanding. In the Critique of Practical Reason, the Deduction of Freedom aims to demonstrate our entitlement to regard ourselves as free. In both Deductions, the central question is a quaestio iuris: “By what right?” Kant’s questions are: By what right do we employ the categories; and by what right do we think of ourselves as free?