| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| Descartes, René |
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| SYLLABICATION: | Des·cartes |
| PRONUNCIATION: |  d -kärt |
| DATES: | 1596–1650 |
| French mathematician, philosopher, and scientist who is considered the father of analytic geometry and the founder of modern rationalism. His main works, Meditations on First Philosophy (1641) and Principles of Philosophy (1644), include the famous dictum “I think, therefore I am.”
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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