One of the most important philosophical works of our time, a work that has had tremendous influence on philosophy, literature, and psychology, and has literally changed the intellectual map of the modern world.

    His friend Norman Malcolm (himself an eminent philosopher) wrote this remarkably vivid personal memoir of Wittgenstein--first published in 1958 to wide acclaim for its moving and truthful portrait of the gifted yet difficult man. And, although much has been published about Wittgenstein since his death, nothing brings us closer to the philosopher himself than this modest classic. Now in a new edition, it includes the complete text of the fifty-seven letters that Wittgenstein wrote to Malcolm over a period of eleven years, revealing how friendship deeply mattered to Wittgenstein: he advises, warns, jokes, and is grateful and affectionate. The volume also features a concise biographical sketch by Georg Henrik von Wright, another leading philosopher and friend of Wittgenstein.

    It remains the one of the most widely read books about science to come out of the twentieth century.(Note: the book was first published in 1934, in German, with the title Logik der Forschung. It was "reformulated" into English in 1959. See Wikipedia for details.)

    If reason is so useful, why didn't it also evolve in other animals? If reason is that reliable, why do we produce so much thoroughly reasoned nonsense? In their groundbreaking account of the evolution and workings of reason, Hugo Mercier and Dan Sperber set out to solve this double enigma. Reason, they argue with a compelling mix of real-life and experimental evidence, is not geared to solitary use, to arriving at better beliefs and decisions on our own. What reason does, rather, is help us justify our beliefs and actions to others, convince them through argumentation, and evaluate the justifications and arguments that others address to us.In other words, reason helps humans better exploit their uniquely rich social environment. This interactionist interpretation explains why reason may have evolved and how it fits with other cognitive mechanisms. It makes sense of strengths and weaknesses that have long puzzled philosophers and psychologists--why reason is biased in favor of what we already believe, why it may lead to terrible ideas and yet is indispensable to spreading good ones.Ambitious, provocative, and entertaining, The Enigma of Reason will spark debate among psychologists and philosophers, and make many reasonable people rethink their own thinking.

    This volume provides a comprehensible guide to his work by a wide range of experts who are actively engaged in new work on Wittgenstein. The essays, which are both expository and original, address central themes in his philosophy of mind, language, logic, and mathematics and clarify the connections among the different stages in the development of his work.

    It is the fullest extant account of ancient skepticism, and it is also one of our most copious sources of information about the other Hellenistic philosophies. Its argumentative approach revolutionized the study of philosophy when Sextus' works were rediscovered in the sixteenth century. This volume presents the accurate and readable translation that was first published in 1994, together with a substantial new historical and philosophical introduction by Jonathan Barnes.

    Each essay gives a biographical background for its subject and a description of the main strands of their thought, together with summaries of their major works.The thirty-four chronologically-organized essays are a comprehensive introduction to Western philosophy's major figures.Dr Jeremy Stangroom is a founding editor of The Philosophers' Magazine, one of the world's most popular philosophy publications. He has written and/or edited numerous books, including: New British Philosophy, What Philosophers Think and Great Thinkers A-Z (all with Julian Baggini); The Dictionary of Fashionable Nonsense and Why Truth Matters (with Ophelia Benson); and What Scientists Think. He is a frequent contributor to New Humanist magazine, and he is also the editor of the Royal Institute of Philosophy web site.James Garvey teaches philosophy at the University of Nottingham and is Secretary of the Royal Institute of Philosophy.

    Ryle's linguistic analysis remaps the conceptual geography of mind, not so much solving traditional philosophical problems as dissolving them into the mere consequences of misguided language. His plain language and esstentially simple purpose place him in the traditioin of Locke, Berkeley, Mill, and Russell.

    Hofstadter's collection of quirky essays is unified by its primary concern: to examine the way people perceive and think.

    The first six chapters, originally published in the 1960s, made a groundbreaking contribution to linguistic theory. This edition complements them with an additional chapter and a new preface, bringing Chomsky's influential approach into the twenty-first century. Chapters 1-6 present Chomsky's early work on the nature and acquisition of language as a genetically endowed, biological system (Universal Grammar), through the rules and principles of which we acquire an internalized knowledge (I-language). Over the past fifty years, this framework has sparked an explosion of inquiry into a wide range of languages, and has yielded some major theoretical questions. The final chapter revisits the key issues, reviewing the 'biolinguistic' approach that has guided Chomsky's work from its origins to the present day, and raising some novel and exciting challenges for the study of language and mind.

    The book represents the first philosophically sound discussion of the concept of number in Western civilization. It profoundly influenced developments in the philosophy of mathematics and in general ontology.

    In this engaging Introduction, A.C. Grayling makes Wittgenstein's thought accessible to the general reader by explaining the natureand impact of Wittgenstein's views. He describes both his early and later philosophy, the differences and connections between them, and gives a fresh assessment of Wittgenstein's continuing influence on contemporary thought.

    Mirroring his theory, Minsky boldly casts The Society of Mind as an intellectual puzzle whose pieces are assembled along the way. Each chapter -- on a self-contained page -- corresponds to a piece in the puzzle. As the pages turn, a unified theory of the mind emerges, like a mosaic. Ingenious, amusing, and easy to read, The Society of Mind is an adventure in imagination.

    He also includes the first complete translation into English of the contexts in which the fragments have been transmitted to us, and of the ancient testimonia regarding Parmenides' life and thought. All of the fragments have been translated in full and are arranged in the order that has become canonical since the publication of the fifth edition of Diels-Rranz's Die Fragmente der Vorsokratiker. Alternative renderings are provided for passages whose meaning is disputed or where major questions of interpretation hinge upon the text or translation adopted.In an extended introductory essay, Gallop offers guidance on the background of the poem, and a continuous exposition of it, together with a critical discussion of its basic argument. The volume also includes an extensive bibliography, a glossary of key terms in the poem, and a section on sources and authorities.

    Dreams, according to his theory, represent the hidden fulfillment of our unconscious wishes.