  The defence and articulation of Quine’s naturalism requires Quinean epistemology, an analogue of traditional epistemology but carried out as a scientific enterprise. It also requires that he set out, in outline, what is to be included in a naturalistic account of the world; in other words, it requires an account of the world, a least in broad outline. Among other things, this account constrains his epistemology, since that is to be a naturalistic account of knowledge.