Descartes,_René

Catholic Encyclopedia: René Descartes [ Teens/Mature Teens ] - Biographical article from the Catholic Encyclopedia.
Descartes, René [ Teens/Mature Teens ] - Biography of the early modern philosopher who rejected religious authority in the quest for scientific and philosophical knowledge.
Encarta: Descartes, René [ Kids/Teens/Mature Teens ] - Encyclopedia articles summarizes his influence on math, philosophy, and science.
René Descartes [ Kids/Teens/Mature Teens ] - Biography from the MacTutor History of Mathematics archive.
René Descartes [ Kids/Teens ] - An eighth-grader introduces the man who said, "I think; therefore, I am."
Rene Descartes (1596 - 1650) [ Teens/Mature Teens ] - Excerpt from "A Short Account of the History of Mathematics" by W. W. Rouse Ball.
René Descartes' Life and Works [ Kids/Teens/Mature Teens ] - Provides a detailed look at his life and writings.
Wikipedia - René Descartes [ Teens/Mature Teens ] - Encyclopedia article about the influential French philosopher, mathematician, scientist, and writer.