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Ideas for 'On 'Generation and Corruption'', 'works' and 'fragments/reports'

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3 ideas

12. Knowledge Sources / B. Perception / 2. Qualities in Perception / d. Secondary qualities
16721 Changes in secondary qualities are caused by changes in primary qualities [Giles of Orleans]
     Full Idea: Every alteration in secondary qualities is caused by some alteration made in the primary qualities.
     From: Giles of Orleans (On 'Generation and Corruption' [1270], I.6c)
     A reaction: Pasnau calls this the 'supervenience' thesis, here with the addition of causation. Was this doctrine retained by Locke and Boyle?
12. Knowledge Sources / C. Rationalism / 1. Rationalism
430 Senses are no use if the soul is corrupt [Heraclitus]
     Full Idea: The eyes and ears are bad witnesses for men if they have barbarian souls.
     From: Heraclitus (fragments/reports [c.500 BCE], B107), quoted by Sextus Empiricus - Against the Mathematicians 7.126
12. Knowledge Sources / D. Empiricism / 4. Pro-Empiricism
1500 When we sleep, reason closes down as the senses do [Heraclitus, by Sext.Empiricus]
     Full Idea: Since when we sleep the senses are closed, mind is separated from its surroundings and loses the power of memory. When we wake the mind re-contacts the world, and regains the power of reason.
     From: report of Heraclitus (fragments/reports [c.500 BCE], A16) by Sextus Empiricus - Against the Professors (six books) 7.130