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Descartes's Secret Notebook: A True Tale of Mathematics, Mysticism, and the Quest to Understand the Universe (2005)

door Amir D. Aczel

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360670,886 (3.2)4
René Descartes (1596-1650) is one of the towering and central figures in Western philosophy and mathematics. His apothegm "Cogito, ergo sum" marked the birth of the mind-body problem, while his creation of so-called Cartesian coordinates have made our physical and intellectual conquest of physical space possible. But Descartes had a mysterious and mystical side, as well. Almost certainly a member of the occult brotherhood of the Rosicrucians, he kept a secret notebook, now lost, most of which was written in code. After Descartes's death, Gottfried Leibniz, inventor of calculus and one of the greatest mathematicians in history, moved to Paris in search of this notebook--and eventually found it in the possession of Claude Clerselier, a friend of Descartes. Leibniz called on Clerselier and was allowed to copy only a couple of pages--which, though written in code, he amazingly deciphered there on the spot. Leibniz's hastily scribbled notes are all we have today of Descartes's notebook, which has disappeared. Why did Descartes keep a secret notebook, and what were its contents? The answers to these questions lead Amir Aczel and the reader on an exciting, swashbuckling journey, and offer a fascinating look at one of the great figures of Western culture.… (meer)
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I took this book from Reston's Used Book Store, VA. Interesting, the owner of the store did not have old scientific/philosophical or engineering books.

I found fascinating stories and letter of Descartes.

One Story: Malebranche first read Descartes philosophy in a manuscript. He did become so excited that he suffered from palpitations of the heart. This is funny; I laughed so loud.

Leibniz read Descartes manuscripts, and so did Newton. Overall, I'd recommend this book to fans of Philosophy

--Deus Vult
Gottfried ( )
  gottfried_leibniz | Oct 4, 2019 |
Cuando Amir D. Aczet estaba investigando para escribir
un libro sobre la vida y la obra de Descartes, descubrió
que el gran filósofo y matemático había escrito un cua-
derno de notas secreto.

¿Por qué llevaba el creador de la filosofía racionalista
un cuaderno secreto y cuál era su contenido?

El intento de encontrar una respuesta a estas
preguntas llevó a Aczel a iniciar esta apasionante aven-
tura intelectual sobre una de las principales figuras del
pensamiento occidental.

René Descartes, que con su unificación de la aritmética
y la geometría hizo posible una de las grandes conquistas
intelectuales de la modernidad: el fundador de la
filosofía racionalista moderna; el autor de la famosa
declaración -Cogito, ergo sum [Pienso, luego existo]
que marca el surgimiento del problema mente/cuerpo y
que inaugura el nuevo paradigma filosófico de la mo-
dernidad, tenía también un lado místico y misterioso
que dejó reflejado en las páginas de un cuaderno de ape-
nas dieciséis páginas llenas de símbolos y de códigos
numéricos cifrados...

... Pertenecía de Descartes a una sociedad secreta de pensadores
radicales, los Rosacrucianos...

En este libro, Aczel describe la formación de Descartes desde su juventud,
sus primeros encuentros con los intelectuales que más influyeron en su
pensamiento, y sus refuerzos por entender, con ayuda de la " verdad divina"
de las matemáticas, el orden y el misterio del cosmo.
  FundacionRosacruz | Sep 23, 2019 |
Over-marketed for what it delivers, to be extremely kind. Aczel doesn't really get the seventeenth century, and misinterprets a fair bit of the historical background related to his subject.

Probably not worth your time. ( )
1 stem JBD1 | Dec 20, 2013 |
Aczel has carved out a niche as a popularizer of mathematical concepts and their discoverers (pop science fast food). Descartes certainly deserves the attention but he deserves better than this book which reads like a magazine article stretched to booklength. Oddly, the book falls short both on mathematics, philosophy and as a biography. There is not much math and philosophy in this text. Descartes' contributions are not developped and compared to his time nor to the present. The only persistent interest of Aczel is Descartes' relationship with the Rosicrucians, which Aczel brings up again and again - without committing himself to a verdict whether Descartes was or was not a member. And the secret (set as the payoff of reading this book) is rather trivial. Neglecting Descartes' contribution to highlight such a detail was not a good decision.

The book also fails as a biography. Aczel is very unfamiliar with the 17th century and misinterpretes common courtesy formulas as signs of affection or sees Descartes' secrecy as exceptional when it was the norm of the scientists at the time. Europe is also a strange beast to him. Many of his impressions seem to be taken from his sources without a test of reality.

At least, the book is short and has a good number of black and white illustrations. ( )
1 stem jcbrunner | Aug 12, 2008 |
I had read Amir Aczel's book on Fermat's Last Theorem, and I felt the same way, more confused than enlightened. The problem is that Mr. Aczel has a less than interesting style: the reading goes by very quickly and it just does not feel like one is gaining a lot of facts when one is gaining some facts. I thought Simon Singh did a better job with Fermat and I can't help but think that someone else can do a better job with this material.

It seems like Mr. Aczel has better things to do and more things to say at the end of the book, so he rushes to get to the good stuff only to reveal that there is very little good stuff.

Rene Descarte has always been a very interesting person to me. I had read a rather extensive biography of the man many years ago as an undergrad, so what Mr. Aczel had to bring to the story is interesting but not surprising. He does a pedantic job of relating the basics with some interesting tidbits thrown in, yet his style makes the interesting seem superficial.

The entire time, Mr. Aczel is moving towards the big mysterious reveal, the reason for yet another Descarte biography. He keeps hinting at a great earthshattering surprise, yet when it does come, the surprise is hardly surprising. The ingenious work that Descarte did in defiance of the church authorities of his day is indeed impressive but Mr. Aczel does not do the revelation justice. He never fully engages the reader in the development of the discovery and he fails to explain the difficulty of the mathematic is ignored altogether.

It is a good short treatment of Descarte's life, but there is no heft, very little mathematical detail, and nonexistent mystery in what is promised as a mysterious and revelatory book. ( )
1 stem pw0327 | Oct 3, 2006 |
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Wikipedia in het Engels (1)

René Descartes (1596-1650) is one of the towering and central figures in Western philosophy and mathematics. His apothegm "Cogito, ergo sum" marked the birth of the mind-body problem, while his creation of so-called Cartesian coordinates have made our physical and intellectual conquest of physical space possible. But Descartes had a mysterious and mystical side, as well. Almost certainly a member of the occult brotherhood of the Rosicrucians, he kept a secret notebook, now lost, most of which was written in code. After Descartes's death, Gottfried Leibniz, inventor of calculus and one of the greatest mathematicians in history, moved to Paris in search of this notebook--and eventually found it in the possession of Claude Clerselier, a friend of Descartes. Leibniz called on Clerselier and was allowed to copy only a couple of pages--which, though written in code, he amazingly deciphered there on the spot. Leibniz's hastily scribbled notes are all we have today of Descartes's notebook, which has disappeared. Why did Descartes keep a secret notebook, and what were its contents? The answers to these questions lead Amir Aczel and the reader on an exciting, swashbuckling journey, and offer a fascinating look at one of the great figures of Western culture.

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