In this work, Descartes' metaphysics and epistemology are clearly stated and assiduously analyzed. It is shown that Descartes' epistemic foundationalism is tenable, and that his mind-body dualism is correct if taken to concern the relationship of mentalistic (mind-related) data to physicalistic data, even though it is incorrect if taken to concern the relationship of mind per se to body per se. Descartes' analysis of causation is shown to be correct, notwithstanding the copious criticism to which centuries have subjected it. Descartes arguments for God's existence are clearly stated and, thereby, shown to be masterpieces of dialectical ingenuity.
