Abstract

Foundationalism, the idea that there is a basic kind of knowledge which is ground-level and hence beyond proof or justification, is one of the oldest themes in philosophy. It has been held by such great philosophers as Plato, Aristotle, Descartes, Locke, Wittgenstein and Moore inter alia\ but exactly what they mean by "foundationalism" is seldom carefully or fully articulated. This paper attempts to give such an explication. It holds that a foundationalist theory must satisfy at least nine conditions, vagueness, stratification, nondependence, particularism or methodism, publicity, negational absurdity, absorption, certitude, and the concept of 'standing fast', the last idea deriving from Wittgenstein's On Certainty.