"A Treatise Concerning the Principles of Human Knowledge" is one of Berkeley's best known works and in it Berkeley expounds upon this idea of subjective idealism, which in other words is the idea that all of reality, as far as humans are concerned, is simply a construct of the way our brains perceive and according to Berkeley no other sense of reality matters beyond that which we perceive.

    Yet The Origin of Species (1859) is also a humane and inspirational vision of ecological interrelatedness, revealing the complex mutual interdependencies between animal and plant life, climate and physical environment, and—by implication—within the human world. Written for the general reader, in a style which combines the rigour of science with the subtlety of literature, The Origin of Species remains one of the founding documents of the modern age.

    Hayek's book, first published in 1960, urges us to clarify our beliefs in today's struggle of political ideologies.

    - A.D. 65) acquired as Nero's minister were in conflict with his Stoic beliefs. Nevertheless he was the outstanding figure of his age. The Stoic philosophy which Seneca professed in his writings, later supported by Marcus Aurelius, provided Rome with a passable bridge to Christianity. Seneca's major contribution to Stoicism was to spiritualize and humanize a system which could appear cold and unrealistic.Selected from the Epistulae Morales ad Lucilium, these letters illustrate the upright ideals admired by the Stoics and extol the good way of life as seen from their standpoint. They also reveal how far in advance of his time were many of Seneca's ideas - his disgust at the shows in the arena or his criticism of the harsh treatment of slaves. Philosophical in tone and written in the 'pointed' style of the Latin Silver Age these 'essays in disguise' were clearly aimed by Seneca at posterity.

    While the Meditations were composed to provide personal consolation and encouragement, Marcus Aurelius also created one of the greatest of all works of philosophy: a timeless collection that has been consulted and admired by statesmen, thinkers and readers throughout the centuries.

    Drawing on a broad range of disciplines, including history, literature, and philosophy—as well as the author's own experience of life on three continents—Cosmopolitanism is a moral manifesto for a planet we share with more than six billion strangers.

    For this second edition the author has revised all the existing chapters, added two new ones, and updated the bibliography. He has also added an appendix describing some of the deep misunderstanding of and consequent violent reaction to the book in Germany, Austria, and Switzerland where the book has tested the limits of freedom of speech. The focus of the book is the application of ethics to difficult and controversial social questions.

    The Clash of Civilizations and the Remaking of World Order is one of the most important books to have emerged since the end of the Cold War." --HENRY A. KISSINGERBased on the author's seminal article in Foreign Affairs, Samuel P. Huntington's The Clash of Civilizations and the Remaking of World Order is a provocative and prescient analysis of the state of world politics after the fall of communism. In this incisive work, the renowned political scientist explains how "civilizations" have replaced nations and ideologies as the driving force in global politics today and offers a brilliant analysis of the current climate and future possibilities of our world's volatile political culture."An intellectual tour de force: bold, imaginative, and provocative. A seminal work that will revolutionize our understanding of international affairs." --ZBIGNIEW BRZEZINSKI"The book is studded with insights, flashes of rare brilliance, great learning, and in particular, an ability to see the familiar in a new and provocative way." --MICHAEL ELLIOTT, THE WASHINGTON POST BOOK WORLD"A benchmark for informed speculation on those always fascinating questions: Just where are we in history? What hidden hand is controlling our destiny?...A searching reflection on our global state." --RICHARD BERNSTEIN, THE NEW YORK TIMES"This is what is so stunning about The Clash of Civilizations: It is not just about the future, but may actually help to shape it." --WANG GUNGWU, THE NATIONAL INTEREST

    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.

    Psychology is the only branch of learning in which I am particularly versed. To the psychologist the religious propensities of man must be at least as interesting as any other of the facts pertaining to his mental constitution. It would seem, therefore, as a psychologist, the natural thing for me would be to invite you to a descriptive survey of those religious propensities." When William James went to the University of Edinburgh in 1901 to deliver a series of lectures on "natural religion," he defined religion as "the feelings, acts, and experiences of individual men in their solitude, so far as they apprehend themselves to stand in relation to whatever they may consider the divine." Considering religion, then, not as it is defined by--or takes place in--the churches, but as it is felt in everyday life, he undertook a project that, upon completion, stands not only as one of the most important texts on psychology ever written, not only as a vitally serious contemplation of spirituality, but for many critics one of the best works of nonfiction written in the 20th century. Reading The Varieties of Religious Experience, it is easy to see why. Applying his analytic clarity to religious accounts from a variety of sources, James elaborates a pluralistic framework in which "the divine can mean no single quality, it must mean a group of qualities, by being champions of which in alternation, different men may all find worthy missions." It's an intellectual call for serious religious tolerance--indeed, respect--the vitality of which has not diminished through the subsequent decades.

    Lewellyn Powys called it "the greatest work of prose of the greatest period of English prose-writing," while the celebrated surgeon William Osler declared it the greatest of medical treatises. And Dr. Johnson, Boswell reports, said it was the only book that he rose early in the morning to read with pleasure. In this surprisingly compact and elegant new edition, Burton's spectacular verbal labyrinth is sure to delight, instruct, and divert today's readers as much as it has those of the past four centuries.

    A leading exponent of French existentialism, her work complements, though it is independent of, that of her great friend Jean-Paul Sartre. In "The Ethics of Ambiguity," Madame de Beauvoir penetrates at once to the core ethical problems of modern man: what shall he do, how shall he go about making values, in the face of this awareness of the absurdity of his existence? She forces the reader to face the absurdity of the human condition, and then, having done so, proceeds to develop a dialectic of ambiguity which will enable him not to master the chaos, but to create with it.

    The essay focuses on political language, which, according to Orwell, "is designed to make lies sound truthful and murder respectable, and to give an appearance of solidity to pure wind." Orwell believed that the language used was necessarily vague or meaningless because it was intended to hide the truth rather than express it.

    Friedman, the Pulitzer Prize-winning foreign affairs columnist for The New York Times, offers an engrossing look at the new international system that is transforming world affairs today. Globalization has replaced the Cold War system with the integration of capital, technology, and information across national borders—uniting Brazilian peasants, Indonesian entrepreneurs, Chinese villagers, and Silicon Valley technocrats in a single global village. You cannot understand the morning news, know where to invest your money, or think about the future unless you understand this new system, which is profoundly influencing virtually every country in the world today. Friedman tells you what this electronic global economy is all about and what it will take to live within it.With vivid stories drawn from his extensive travels, he dramatizes the conflict of “the Lexus and the olive tree”—the tension between the globalization system and the ancient forces of culture, geography, tradition, and community. He also details the powerful backlash that globalization produces among those who feel brutalized by it, and he spells out what we all need to do to keep the Lexus and the olive tree in balance. For this new paperback edition, Friedman has substantially expanded and updated his provocative analysis, making it essential reading for all who care about how the world works now.

    Moving away from the Marxist/Freudian approaches that had concerned him earlier, Baudrillard developed in this book a theory of contemporary culture that relies on displacing economic notions of cultural production with notions of cultural expenditure.Baudrillard uses the concepts of the simulacra—the copy without an original—and simulation. These terms are crucial to an understanding of the postmodern, to the extent that they address the concept of mass reproduction and reproduceability that characterizes our electronic media culture.Baudrillard's book represents a unique and original effort to rethink cultural theory from the perspective of a new concept of cultural materialism, one that radically redefines postmodern formulations of the body.Sheila Glaser is an editor at Artforum magazine.