Donald Davidson famously offered an explanation of “first-person authority”. However, he described first-person authority differently across different works—sometimes referring to the presumptive truth of agents’ self-ascriptions of their current mental states, and sometimes referring to the direct self-knowledge that agents often have of said states. First, I show that a standard Davidsonian explanation of first-person authority can at best, and with some modification, explain the presumptive truth of agents’ self-ascriptions. I then develop two Davidsonian accounts of direct self-knowledge—one accounting for (...) its function and another accounting for its source—pushing back in the process against deflationary and quietist rejoinders to these projects. Finally, I relate my Davidsonian accounts of direct self-knowledge back to the modified Davidsonian account of the presumptive truth of agents’ self-ascriptions. (shrink)

Donald Davidson's explanation of first-person authority turns on an ingenious account of speakers' knowledge of meaning. It nonetheless suffers from a structural defect and yields, at best, expressive know-how for speakers. I argue that an expressivist strand already latent in Davidson's paratactic treatment of the semantics of belief attribution can be exploited to repair the defect, and so to yield a plausible account of first-person authority.