 …is there a positive reason for thinking that normative epistemology is a viable program?…. The short answer is this: we believe in the supervenience of epistemic properties on naturalistic ones, and more generally, in the supervenience of all valuational and normative properties on naturalistic conditions…. That [a given belief] is a justified belief cannot be a brute fundamental fact unrelated to the kind of belief it is. There must be a reason for it, and this reason must be grounded in the factual descriptive properties of that particular belief. Something like this, I think, is what we believe. (Kim 1988: 399)