Combining Texts
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'works (fragments)', 'The Fixation of Belief' and 'What Numbers Could Not Be'
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6 ideas
13. Knowledge Criteria / A. Justification Problems / 1. Justification / c. Defeasibility
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20797
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If a grasped perception cannot be shaken by argument, it is 'knowledge' [Zeno of Citium, by Cicero]
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13. Knowledge Criteria / B. Internal Justification / 2. Pragmatic justification
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6598
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We need our beliefs to be determined by some external inhuman permanency [Peirce]
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13. Knowledge Criteria / B. Internal Justification / 4. Foundationalism / b. Basic beliefs
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6944
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Demonstration does not rest on first principles of reason or sensation, but on freedom from actual doubt [Peirce]
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13. Knowledge Criteria / B. Internal Justification / 4. Foundationalism / d. Rational foundations
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21398
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A presentation is true if we judge that no false presentation could appear like it [Zeno of Citium, by Cicero]
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13. Knowledge Criteria / C. External Justification / 1. External Justification
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6948
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Doubts should be satisfied by some external permanency upon which thinking has no effect [Peirce]
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13. Knowledge Criteria / D. Scepticism / 6. Scepticism Critique
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6945
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Once doubt ceases, there is no point in continuing to argue [Peirce]
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