Sander Verhaegh

Robert Sinclair’s *Quine, Conceptual Pragmatism, and the Analytic-Synthetic Distinction* persuasively argues that Quine’s epistemology was deeply influenced by C. I. Lewis’s pragmatism. Sinclair’s account raises the question why Quine himself frequently downplayed Lewis’s influence. Looking back, Quine has always said that Rudolf Carnap was his “greatest teacher” and that his 1933 meeting with the German philosopher was his “first experience of sustained intellectual engagement with anyone of an older generation” (1970, 41; 1985, 97-8, my emphasis). Quine’s autobiographies contain only a handful of biographical references to Lewis and he regularly soft-pedaled the latter’s influence in private correspondence. In this note, I discuss some archival evidence that helps us better understand Quine’s reluctance to acknowledge Lewis’s influence. I contextualize the relation between Lewis and Quine and argue that the latter viewed his teacher as a retrograde force in modern epistemology, impeding the more rigorous approach that Carnap had been developing in Europe. Next, I briefly discuss Lewis’s contribution to the development of scientific philosophy in the United States and argue that Quine underestimated his teacher’s role in this process. In doing so, I hope to show that Quine’s zealous commitment to Carnap’s approach negatively affected his assessment of Lewis’s influence, thereby supplementing Sinclair’s praiseworthy reconstruction with an explanation of why Quine himself underestimated Lewis’s role.

Scientism, the view that only scientifically supported beliefs are epistemically justified, faces two influential problems: (1) scientism itself does not seem to be scientifically supported and hence self-referentially incoherent; and (2) scientism seems to dismiss many plausible ordinary beliefs as unjustified. In this paper, we show that both problems presuppose a needlessly narrow conception of science and that when scientism is based on a broader, more realistic conception of science neither problem arises. Furthermore, we argue that our variant of scientism is still strong enough to have philosophical bite.

Some sceptics claim that in cases of peer disagreement, we ought to suspend judgment about the topic of discussion. In this paper, we argue that the sceptic’s conclusions are only correct in some scenarios. We show that the sceptic’s conclusion is built on two premises (the principle of evidential symmetry and the principle of evidentialism) and argue that both premises are incorrect. First, we show that although it is often rational to suspend judgment when an epistemic peer disagrees with you, peer disagreements are not symmetrical. Next, we argue that even if one assumes that peer disagreements are symmetrical, it might still be rational to stick to one’s guns in the light of peer disagreement.