Combining Texts

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

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3 ideas

12. Knowledge Sources / A. A Priori Knowledge / 2. Self-Evidence
Start a thesis with something undisputable [Diogenes of Apollonia]
     Full Idea: In starting any thesis, it seems to me, one should put forward as one's point of departure something incontrovertible.
     From: Diogenes (Apoll) (fragments/reports [c.440 BCE], B01), quoted by Diogenes Laertius - Lives of Eminent Philosophers 09.57
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / d. Secondary qualities
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 / B. Perception / 6. Inference in Perception
Perception must be an internal matter, because we can fail to perceive when we are preoccupied [Diogenes of Apollonia, by Theophrastus]
     Full Idea: That it is the inner air that perceives, as being a fragment of the god, is shown by the fact that often when our minds are preoccupied with other matters we fail to see or hear.
     From: report of Diogenes (Apoll) (fragments/reports [c.440 BCE], A19) by Theophrastus - On the Senses 42