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http://a1.files.biography.com/image/upload/c_fit,cs_srgb,dpr_1.0,h_1200,q_80,w_1200/MTE1ODA0OTcxMjY3MzYwMjY5.jpg
https://upload.wikimedia.org/wikipedia/commons/thumb/a/ae/DescartesAshes.jpg/220px-DescartesAshes.jpg
https://upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Firma_Descartes.svg/150px-Firma_Descartes.svg.png

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https://www.youtube.com/watch?v=cDNCv-ob87E

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http://www2.dsu.nodak.edu/users/dmeier/31243550-Descartes-The-World-and-Other-Writings.pdf

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Audio of Meditations on First Philosophy

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Audio of Meditations on First Philosophy

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http://www.learnoutloud.com/podcaststream/listen.php?url=http://librivox.org/rss/1502&all=1&title=34947

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https://www.youtube.com/watch?v=CAjWUrwvxs4

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Rene Descartes popularized The phrase: Cogito ergo sum- I think therefore I am. How wise! If I’m thinking, then it’s presumed That I exist because of “I” The one doing the thinking. On this point we see eye to eye; Even so, it begs questioning Beyond my very existence; That is, the question: who am I? A query asked with persistence. What does “buried beneath” imply? Does it mean “core sense” of myself Or an illusion of one’s self?

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Academic. academic.sun.ac.za/mathed/Shoma/MATUNIT12_02.htm. Accessed 30 Jan. 2017.
"Rene Descartes Quotes- BrainyQuote." BrainyQuote, www.brainyquote.com/quotes/authors/r/rene_descartes.html. Accessed 30 Jan. 2017.
"Short Descartes Poems." Poem Soup, www.poetrysoup.com/poems/short/descartes. Accessed 30 Jan. 2017.
Smith, Kurt. "Descartes' Life and Works." Stanford Encyclopedia of Philosophy, Stanford Center of the Study for Language and Information, 2014, plato.stanford.edu/entries/descartes-works/. Accessed 30 Jan. 2017.
SparkNotes. www.sparknotes.com/philosophy/descartes/context.html. Accessed 30 Jan. 2017.
Stanford Encyclopedia of Philosophy. Stanford Center for the Study of Language and Information, plato.stanford.edu/entries/descartes-epistemology/. Accessed 30 Jan. 2017.
Wikipedia. en.wikipedia.org/wiki/Ren%C3%A9_Descartes. Accessed 30 Jan. 2017.

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"The philosophical value of doubt" by Mario de Paz:
I deny Socrates.

I don’t know that I don’t know.
But I believe it.

I deny Descartes.
I am, not because I think.
But I believe  it.

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Descartes' main project in philosophy, specifically epistemology, was Meditations on First Philosophy. When it was finished, the book was made known to other philosophers for their thoughts and observations. The first edition was published in 1641, and the second in 1642.

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"It is not enough to have a good mind; the main thing is to use it well. "
"I am indeed amazed when I consider how weak my mind is and how prone to error."
"Except our own thoughts, there is nothing absolutely in our power."
"The senses deceive from time to time, and it is prudent never to trust wholly those who have deceived us even once."

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He was the first rationalist in the world of philosophy, and he invented analytical geometry. He is nicknamed the father of modern philosophy.

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-Meditations on First Philosophy
-Discourse on the Method
-the Compendium Musicae
-Rules for the Direction of the Mind (abandoned in the middle of being written)
- the Optics
- the Meteorology
- the World (combination of last two)
- The Discourse
- Principles of Philosophy
-The Geometry
- The Passions of the Soul
- The Philosophical Writings of Descartes: Volume 3, The Correspondence
-Treatise of Man

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- Analytical (Cartesian) Geometry
-Cartesian Plane
-Cogito Ergo Sum (I think, therefore I am)
-Cartesian Doubt
-Method of Normals
-Cartesian Dualism
-Foundationalism
-Mathesis universalis
-Folium of Descartes
-Dream argument
-Evil demon

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As stated by Adrien Baillet, on 11/10/1619, Descartes was stationed in Neuburg an der Donau. There, to keep warm, he shut himself in a room that had a mansory heater inside it. In this room he experienced three visions, and thought that a divine spirit had given him the idea of analytical, or Cartesian, geometry and revealed to him a mathematical method of philosophy. He believed that science would give him great wisdom if it was his main study in life. He saw that all truths are in some way connected. He soon discovered the truth cogito ergo sum, or, "I think, therefore I am".

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Descartes caught a cold on February 1st, but the small infection soon morphed into a serious respiratory disease, leading to his death on February 11th. According to the doctor Van Wullen, who was prohibited from bleeding Descartes, the cause was peripneumonia, but pneumonia according to Pierre Chanut.

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Here is Descartes' signature:

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Life In the Army and Introduction to Mathematics

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Life In the Army and Introduction to Mathematics

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In 1618, he joined the Dutch State Army under command of Maurice of Nassau. According to Simon Stevin, there he studied military engineering, making others encourage him to get into the studies of mathematics. Then he met Isaac Beeckman, the principal of a Dordecht school, with whom he worked on catenary, conic section, free fall, and fluid statics. They both thought that a method that integrated physics and mathematics was necessary.

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Descartes was born into a Roman Catholic family. When he was just one year old, his mother died in an attempt to give birth to another child.  He attended  Jesuit Collège Royal Henry-Le-Grand in La Fléiche, in 1607 due to his frail health. He graduated in 1614. From 1615-1616, he continued his education at the University of Poitiers, earning a

Baccalauréat and License in Canon and Civil Law prior to moving to Paris.

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Born on 3/31/1596 in La Haye en Touraine, Kingdom of France.
Died on 2/11/1650 in Stockholm, Sweden, aged 53.