Rules for the Direction of the MindRené DescartesRead freeBuy on AmazonAppears in 5 ideasEpistemologyReasoningHow does the mind move from what it knows to what it does not yet know?HypothesisWhat role do assumptions play in inquiry, and how are hypotheses tested?MathematicsWhat is the nature of mathematical objects, and why does mathematics apply to the physical world?Logic & MethodLogicWhat are the rules that govern valid reasoning, and is logic a science, an art, or both?InductionHow does the mind move from observed particulars to universal truths, and can this move ever be rationally justified?