There are a lot of contributions of Rene Descartes. René Descartes conclusive argument was that the nature of the mind which is thinking and non-extended thing is said to be very different from that of the body.
He was known to be the man who invented analytical geometry and brought about skepticism as a key part of the scientific method.
His conclusive argument was that the nature of the mind which is thinking and non-extended thing is said to be very different from that of the body and that their function is not the same.
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