Locke tells us that his purpose in An Essay Concerning Human Understanding is “to inquire into the original, certainty, and extent of human knowledge, together with the grounds and degrees of belief, opinion, and assent”. He provides a characterization of general human knowledge as universal truths in propositional form. In doing this he presupposes a striking doctrine about the “extent” of man's general knowledge, and he draws freely upon a theory meant to explain both the materials out of which this (...) knowledge is constructed and the way in which it is constructed. He holds that the “certainty” which characterizes general knowledge is obtained only if we proceed from the right materials or foundations in the right way, and that the right foundations themselves can only be obtained in one specific way. In this study I try to show how much more Cartesian Locke is than many commentators would allow. I argue that on Locke's own view the way to obtain the foundations for general knowledge is that of Cartesian analysis, and the way to construct general knowledge once these foundations have been obtained is that of Cartesian synthesis. (shrink)

Hume begins ‘Of scepticism with regard to the senses,’ Section 2 of the Treatise, Book I, Part iv with the claim that it is otiose to ask whether or not there are bodies since belief in their existence is unavoidable. The appropriate question is rather ‘What causes induce us to believe in the existence of body?’. For Hume, belief is lively conception. Hence, he is also undertaking to answer the logically prior question: What causes induce us to form the concept (...) of body? Hume wants to explain the ordinary notion of, and belief in, external objects as part of his science of human nature. (shrink)

Berkeley’s Principles is a curious work. The nominal topic is epistemic. The actual topic is ontological. And it is not uncommon to suggest that ‘Berkeley’s system presents us with unique puzzles, particularly at its foundation.’.