This is an essay in epistemology and the philosophy of language. It concerns epistemology in that it is a manifesto for epistemic independence: the independence of good thinking from practical considerations. It concerns philosophy of language in that it defends a functionalist account of the normativity of assertion in conjunction with an integrated view of the normativity of constative speech acts. The book defends the independence of thought from the most prominent threat that has surfaced in the last twenty years of epistemological theorizing: the phenomenon of shiftiness of proper assertoric speech with practical context. It does four things: first, it shows that, against orthodoxy, the argument from practical shiftiness of proper assertoric speech against the independence of proper thought from the practical does not go through, for it rests on normative ambiguation. Second, it defends a proper functionalist knowledge account of the epistemic normativity of assertion, in conjunction with classical invariantism about knowledge attributions. Third, it generalizes this account to all constative speech. Last, it defends detailed normative accounts for conjecturing, telling, and moral assertion.
Practical and Epistemic Justification in Alston’s "Perceiving God"
