What two legacy problems did René Descartes leave?

René Descartes left two significant legacy problems: the mind-body dualism and the challenge of skepticism. His dualism posited a clear separation between the mind and the body, leading to ongoing debates in philosophy and science regarding consciousness and the nature of reality. Additionally, his approach to skepticism, particularly in his method of doubt, raised questions about the limits of human knowledge and the criteria for certainty, influencing subsequent philosophical inquiry.