Ernest Sosa

There is a controversy in contemporary philosophy over the question whether or not knowledge must have a foundation. On one side are the foundationalists, who do accept the metaphor and find the foundation in sensory experience or the like. The coherentists, on the other side, reject the foundations metaphor and consider our body of knowledge a coherent whole floating free of any foundations. This controversy grew rapidly with the rise of idealism many years ago, and it is prominent today not only in epistemology proper but also in philosophy of science and even in ethics. The discussion of this issue has been lamentably hampered by confusion and misunderstanding, and in this neither side is wholly innocent. The reflections that follow are not meant to settle the controversy, but only to help us understand it more clearly.

Since this paper is for a conference on “Contextualism in Epistemology and Beyond,” I have opted to sketch a retrospective of contextualism in epistemology, including highlights of the “relevant alternatives” approach, given how relevantism and contextualism have developed in tandem. We focus on externalist forms of contextualism, bypassing internalist forms such as Cohen 1988 and Lewis 1996, but much of our discussion will be applicable to contextualism generally. Internalist contextualism is helpfully discussed in papers by Stewart Cohen, Richard Feldman, and Jonathan Vogel, in Tomberlin 1999.