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Twenty years after it topped the bestseller charts, Douglas R. Hofstadter's Gödel, Escher, Bach: An Eternal Golden Braid is still something of a marvel. Besides being a profound and entertaining meditation on human thought and creativity, this book looks at the surprising points of contact between the music of Bach, the artwork of Escher, and the mathematics of Gödel. It also looks at the prospects for computers and artificial intelligence (AI) for mimicking human thought. For the general reader and the computer techie alike, this book still sets a standard for thinking about the future of computers and their relation to the way we think.

Topics Covered: J.S. Bach, M.C. Escher, Kurt Gödel: biographical information and work, artificial intelligence (AI) history and theories, strange loops and tangled hierarchies, formal and informal systems, number theory, form in mathematics, figure and ground, consistency, completeness, Euclidean and non-Euclidean geometry, recursive structures, theories of meaning, propositional calculus, typographical number theory, Zen and mathematics, levels of description and computers; theory of mind: neurons, minds and thoughts; undecidability; self-reference and self-representation; Turing test for machine intelligence.

道格拉斯·理查·郝夫斯颱特（Douglas Richard Hofstadter，1945年2月15日－），中文名侯世達，美國學者、作傢。他的主要研究領域包括意識、類比、藝術創造、文學翻譯以及數學和物理學探索。 因其著作《哥德爾、埃捨爾、巴赫》獲得普立茲奬（非小說 類彆） 和美國國傢圖書奬（科學類彆）。

侯世達是美國印第安納大學文理學院認知科學傑齣教授，主管概念和認知研究中心。他本人和他輔導的研究生組成“流體類推研究小組”。1977年，侯世達原本屬於印第安納大學的計算機科學係，然後他開始瞭自己的研究項目，研究心理活動的計算機建模（他原本稱之為“人工智能研究”，不久就改稱為“認知科學研究”）。1984年，侯世達受聘於密歇根大學，任心理學教授，同時負責人類認識研究。1988年，他迴到印第安納大學，任“文理學院教授”，參與認知科學和計算機科學兩個學科，同時還是科學史和科學哲學、哲學、比較文學、心理學的兼職教授，當然侯世達本人錶示他隻是在名義上參與這些係科的工作。2009年4月，侯世達被選為美國文理科學院院士，並成為美國哲學會會員。

侯世達曾說過他對“以計算機為中心的宅文化感到不適”。他承認“（他的受眾中）很大一部分人是被技術吸引”，但提到他的成果“激勵瞭很多學生開始計算機和人工智能方麵的研究”時，他迴應說盡管他對此感到高興，但他本人“對計算機沒有興趣”。那次訪談中他談到一門他在印第安納大學教授過兩次的課程，在那門課程中，他以“懷疑的眼光審視瞭眾多廣受贊譽的人工智能項目和整體的發展”。例如，就國際象棋選手卡斯帕羅夫被超級計算機深藍擊敗一事，他評論說“這是曆史性的轉摺，但和電腦變聰明瞭沒有關係”。

Overview
List of Illustrations
Words of Thanks
Pt. I GEB
Introduction: A Musico-Logical Offering : Three-Part Invention
Ch. I The MU-puzzle : Two-Part Invention
Ch. II Meaning and Form in Mathematics : Sonata for Unaccompanied Achilles
Ch. III Figure and Ground : Contracrostipunctus
Ch. IV Consistency, Completeness, and Geometry : Little Harmonic Labyrinth
Ch. V Recursive Structures and Processes : Canon by Intervallic Augmentation
Ch. VI The Location of Meaning : Chromatic Fantasy, And Feud
Ch. VII The Propositional Calculus : Crab Canon
Ch. VIII Typographical Number Theory : A Mu Offering
Ch. IX Mumon and Godel
Pt. II EGB
Prelude ...
Ch. X Levels of Description, and Computer Systems : ... Ant Fugue
Ch. XI Brains and Thoughts : English French German Suite
Ch. XII Minds and Thoughts : Aria with Diverse Variations
Ch. XIII BlooP and FlooP and GlooP : Air on G's String
Ch. XIV On Formally Undecidable Propositions of TNT and Related Systems : Birthday Cantatatata ...
Ch. XV Jumping out of the System : Edifying Thoughts of a Tobacco Smoker
Ch. XVI Self-Ref and Self-Rep : The Magnificrab, Indeed
Ch. XVII Church, Turing, Tarski, and Others : SHRDLU, Toy of Man's Designing
Ch. XVIII Artificial Intelligence: Retrospects : Contrafactus
Ch. XIX Artificial Intelligence: Prospects : Sloth Canon
Ch. XX Strange Loops, Or Tangled Hierarchies : Six-Part Ricercar
Notes
Bibliography
Credits
Index
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