Ideas from 'reports' by Pyrrho [325 BCE], by Theme Structure
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1. Philosophy / D. Nature of Philosophy / 1. Philosophy
1798
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He studied philosophy by suspending his judgement on everything [Diog. Laertius]
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2. Reason / A. Nature of Reason / 9. Limits of Reason
1800
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Sceptics say reason is only an instrument, because reason can only be attacked with reason [Diog. Laertius]
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13. Knowledge Criteria / A. Justification Problems / 1. Justification / a. Justification issues
6595
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If we need a criterion of truth, we need to know whether it is the correct criterion [Fogelin]
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13. Knowledge Criteria / D. Scepticism / 1. Scepticism
6593
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The Pyrrhonians attacked the dogmas of professors, not ordinary people [Fogelin]
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13. Knowledge Criteria / D. Scepticism / 6. Scepticism Critique
6592
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Academics said that Pyrrhonians were guilty of 'negative dogmatism' [Fogelin]
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13. Knowledge Criteria / E. Relativism / 1. Relativism
1801
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Animals vary in their feelings and judgements (Mode 1) [Diog. Laertius]
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1803
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Objects vary according to which sense perceives them (Mode 3) [Diog. Laertius]
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1809
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Perception is affected by expectations (Mode 9) [Diog. Laertius]
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1802
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Individuals vary in responses and feelings (Mode 2) [Diog. Laertius]
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1807
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Perception varies with viewing distance and angle (Mode 7) [Diog. Laertius]
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1810
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Perception and judgement depend on comparison (Mode 10) [Diog. Laertius]
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1805
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Judgements vary according to local culture and law (Mode 5) [Diog. Laertius]
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1808
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Perception of things depends on their size or quantity (Mode 8) [Diog. Laertius]
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1804
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Perception varies with madness or disease (Mode 4) [Diog. Laertius]
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1806
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Perception of objects depends on surrounding conditions (Mode 6) [Diog. Laertius]
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26. Natural Theory / C. Causation / 7. Eliminating causation
3062
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There are no causes, because they are relative, and alike things can't cause one another [Diog. Laertius]
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27. Natural Reality / A. Classical Physics / 1. Mechanics / a. Explaining movement
3063
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Motion can't move where it is, and can't move where it isn't, so it can't exist [Diog. Laertius]
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