It pertains to Descartes' way of thinking, typically referring to his philosophical ideas or methods. The Cartesian doubt approach questions everything until proven.
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Mind-Body Concept
Often used to discuss the mind-body separation, a central idea in Descartes' philosophy. Cartesian dualism debates the distinction between mind and physical matter.
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Academic Discussions
Mainly appears in scholarly conversations or texts, not in casual speech. The Cartesian circle is a potential logical flaw in Descartes' reasoning.