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.
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
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.
Karl Popper (1902-1994). Philosopher, born in Vienna. One of the most influential and controversial thinkers of the twentieth century.
Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.
EUR 4,06 expédition depuis Royaume-Uni vers France
Destinations, frais et délaisEUR 25,56 expédition depuis Etats-Unis vers France
Destinations, frais et délaisVendeur : Better World Books Ltd, Dunfermline, Royaume-Uni
Etat : Good. Ships from the UK. Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. N° de réf. du vendeur GRP61390918
Quantité disponible : 1 disponible(s)
Vendeur : Anybook.com, Lincoln, Royaume-Uni
Etat : 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. N° de réf. du vendeur 4317225
Quantité disponible : 1 disponible(s)
Vendeur : Anybook.com, Lincoln, Royaume-Uni
Etat : 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. N° de réf. du vendeur 4317226
Quantité disponible : 1 disponible(s)
Vendeur : Anybook.com, Lincoln, Royaume-Uni
Etat : 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. N° de réf. du vendeur 4317227
Quantité disponible : 1 disponible(s)
Vendeur : Better World Books, Mishawaka, IN, Etats-Unis
Etat : Good. Used book that is in clean, average condition without any missing pages. N° de réf. du vendeur 5444522-75
Quantité disponible : 1 disponible(s)
Vendeur : Anytime Books, London, Royaume-Uni
Soft cover. Etat : Very Good. Third revised ed. pp.xiii.431. N° de réf. du vendeur 006176
Quantité disponible : 1 disponible(s)
Vendeur : Goulds Book Arcade, Sydney, Newtown, Sydney, NSW, Australie
Paper Back. Etat : Very Good. 431 pages. The cover is a little worn and creased. Books listed here are not stored at the shop. Please contact us if you want to pick up a book from Newtown. Size: Size F: 8"-9" Tall (203-228mm). N° de réf. du vendeur 153198
Quantité disponible : 1 disponible(s)
Vendeur : Sequitur Books, Boonsboro, MD, Etats-Unis
Paperback. Etat : Good. Softcover. Shelf wear. Binding cocked. Moderate creasing. Scattered highlighting and markings. N° de réf. du vendeur 2108110151
Quantité disponible : 1 disponible(s)
Vendeur : Windows Booksellers, Eugene, OR, Etats-Unis
Paperback. Handsome copy 431 pp. N° de réf. du vendeur 735915
Quantité disponible : 1 disponible(s)
Vendeur : bmyguest books, Toronto, ON, Canada
Soft cover. Etat : Very Good. 5th Edition. 431 Pages With The Index, In Very Good Condition With No Remarks Or Highlights. Paperback. 5Th Edition. Soft Cover.books are NOT signed. We will state signed at the description section. we confirm they are signed via email or stated in the description box. - Specializing in academic, collectiblle and historically significant, providing the utmost quality and customer service satisfaction. For any questions feel free to email us. N° de réf. du vendeur X17124x
Quantité disponible : 1 disponible(s)