This paper presents and defends a reappraisal of J.L. Austin’s infamous analogy between saying ‘I know’ and ‘I promise’ in ‘Other Minds.’ The paper has four sections. In §1, I contend that the standard reading of Austin’s analogy is a strawman that distorts the terms of the analogy and superimposes philosophical commitments that Austin was precisely trying to combat. In §§2 and 3, I argue that to understand the point of the analogy we must contextualize ‘Other Minds’ as a response (...) to logical positivism. I recap A.J. Ayer’s influential account of positivism, before arguing that ‘Other Minds’ and its centrepiece analogy should be read as an attack on Austin’s colleague’s organizing positivist assumptions – specifically, descriptivism and the fact/value dichotomy that it props up. My main thesis is that Austin sought to show that epistemic discourse is imbricated with ethical commitments. This reading is anticipated by Cavell, to whom I turn in §4. I bring together insights from across Cavell’s oeuvre to develop this reading of Austin’s analogy and finally to critique certain aspects of it. This paper adds to the recent resurgence in Austin scholarship and aims to get clear the philosophical and historical stakes of his historically maligned analogy. (shrink)