Knowledge As Justified True Belief
Many or most analytic philosophers would wish to be able to hold to what is known as the JTB account of knowledge: the claim that knowledge can be conceptually analyzed as justified true belief — which is to say that the meaning of sentences such as "Smith knows that it rained today" can be given with the following set of necessary and jointly sufficient conditions:
- A subject S knows that a proposition P is true if and only if:
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- P is true
- S believes that P is true, and
- S is justified in believing that P is true
Read more about this topic: Gettier Problem
Famous quotes containing the words knowledge, justified, true and/or belief:
“All schools, all colleges, have two great functions; to confer, and to conceal, valuable knowledge. The theological knowledge which they conceal cannot justly be regarded as less valuable than that which they reveal. That is, when a man is buying a basket of strawberries it can profit him to know that the bottom half of it is rotten.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind.”
—John Stuart Mill (1806–1873)
“Women’s liberation, if it abolishes the patriarchal family, will abolish a necessary substructure of the authoritarian state, and once that withers away Marx will have come true willy-nilly, so let’s get on with it.”
—Germaine Greer (b. 1939)
“To regard the successful experiences which ensue from a belief as a criterion of its truth is one thing—and a thing that is sometimes bad and sometimes good—but to assume that truth itself consists in the process by which it is verified is a different thing and always bad.”
—William Pepperell Montague (1842–1910)