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| | Rene Descartes |
 | | Descartes was able to solve the puzzle and this led to a close friendship with the stranger, who turned out to be Isaac Beeckman, the head of the Dutch College at Dort. |
 | | Descartes argued with mathematical finesse that only certainty could serve as a basis for knowledge, and that he had a method for attaining certainty. |
 | | Descartes, in his search for a universal-mechanism, undertook the study of subjects as varied as mathematics, physics, astronomy, anatomy, physiology, psychology, embryology, metaphysics, epistemology, ethics, theology and meteorology. |
| www.meta-religion.com /Philosophy/Biography/Rene_Descartes/rene_descartes.htm (1723 words) |
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