The way in which knowledge progresses, and especially our scientific knowledge, is by unjustified (and unjustifiable) anticipations, by guesses, by tentative solutions to our problems, by conjectures. These conjectures are controlled by criticism: that is, by attempted refutations, which include severely critical tests. They may survive these tests; but they can never be positively justified: they can neither be established as certainly true nor even as 'probable' (in the sense of the probability calculus). Criticism of our conjectures is of decisive importance: by bringing out our mistakes it makes us understand the difficulties of the problems which we try to solve. This is how we become better acquainted with our problem, and able to propose more mature solutions: the very refutation of a theory - that is, of a tentative solution to our problem - is always a step forward that takes us nearer the truth. And this is how we can learn from our mistakes. As we learn from our mistakes our knowledge grows, even though we may never know - that is, know for certain. Since our knowledge can grow, there can be no reason here for despair of reason. And since we can never know for certain, the can be no authority here for any claim to authority, for conceit over our knowledge, or for smugness. The essays and lectures of which this book is composed apply this thesis to many topics, ranging from problems of the philosophy and history of the physical and social sciences to historical and political problems.
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'Popper holds that truth is not manifest, but extremely elusive, he believes that men need above all things, open-mindedness, imagination, and a constant willingness to be corrected.' – Maurice Cranston, Listener
Book by Popper Karl
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Da: Goodwill Books, Hillsboro, OR, U.S.A.
Condizione: good. Signs of wear and consistent use. Codice articolo GICWV.0415043182.G
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Da: The Maryland Book Bank, Baltimore, MD, U.S.A.
paperback. Condizione: Good. 5th Edition. Corners are bent. Used - Good. Codice articolo 2-L-1-1452
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Da: Reuseabook, Gloucester, GLOS, Regno Unito
Paperback. Condizione: Used; Good. Dispatched, from the UK, within 48 hours of ordering. This book is in good condition but will show signs of previous ownership. Please expect some creasing to the spine and/or minor damage to the cover. Damaged cover. The cover of is slightly damaged for instance a torn or bent corner. Codice articolo CHL4884941
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Da: Better World Books Ltd, Dunfermline, Regno Unito
Condizione: Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good. Codice articolo GRP61390918
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Da: Tacoma Book Center, Tacoma, WA, U.S.A.
Paperback. Condizione: Fair. Condizione sovraccoperta: No Dustjacket. Later Edition. ISBN 9780415043182. Trade Paperback. Fifth edition. TIGHT SOUND READING COPY ONLY DUE TO highlighting and underlining throughout; otherwise average wear. No Signature. Codice articolo 4217078
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Da: Windows Booksellers, Eugene, OR, U.S.A.
Paperback. Handsome copy 431 pp. Codice articolo 735915
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Da: Anybook.com, Lincoln, Regno Unito
Condizione: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. Book contains pen & pencil markings. In poor condition, suitable as a reading copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,800grams, ISBN:9780415043182. Codice articolo 4317227
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Da: Anybook.com, Lincoln, Regno Unito
Condizione: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. Book contains pen markings. In poor condition, suitable as a reading copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,800grams, ISBN:9780415043182. Codice articolo 4317225
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Da: Anybook.com, Lincoln, Regno Unito
Condizione: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. Book contains pen, pencil & highlighter markings. In poor condition, suitable as a reading copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,800grams, ISBN:9780415043182. Codice articolo 4317226
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Da: BookAddiction (IOBA, IBooknet), Canterbury, Regno Unito
Softcover. Condizione: Very Good. xiv, 432pp. Pictorial laminated light card covers. 8vo. Light chipping to edges and wear to covers, corners starting to curl. Pages starting to age. Otherwise, internally, neat, clean and tight. Codice articolo 039503
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