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          Rene Descartes is a philosopher that studies radical doubt. The mind is more known than the body. The mind is irrefutable truth, absolute truth. On the other hand thee body is doubtable. Rene Descartes studies epistemology by seeing the knowledge of the mind. The perception is judging something like in the image above it, I can judge on what the image looks like. Rene Descartes believes in authority and tradition. Authority can be the mom, dad, teacher or an adult. "can be confused" Rene Descartes has 6 passions. Joy, hatred, sadness, wonder, desire, and love. He believes that if you think, you exist. "I think, therefore I am."-Rene Descartes 

Irrefutable Truth- Judge, taste, mind, perception, feel