Combining Philosophers

All the ideas for Ernest Nagel, Rahulabhadra and Giles of Orleans

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3 ideas

1. Philosophy / A. Wisdom / 1. Nature of Wisdom
Theory vanishes when one has obtained wisdom [Rahulabhadra]
     Full Idea: As the drops of dew in contact/ With the sun's rays disappear,/ So all theorizings vanish,/ Once one has obtained wisdom.
     From: Rahulabhadra (Hymn to Perfect Wisdom [c.150], v 10)
     A reaction: I suspect that the western view is that wisdom is good theory. This sounds like the sort of thing Wittgenstein would have said. Remarks like this encourage people to skip study, with the illusion that they can go straight to wisdom.
7. Existence / C. Structure of Existence / 2. Reduction
Reduction has been defined as deriving one theory from another by logic and maths [Nagel,E, by Kim]
     Full Idea: Ernest Nagel defines reduction as the possibility of deriving all laws of one theory by logic and mathematics to another theory, with appropriate 'bridging principles' (either definitions, or empirical laws) connecting the expressions of the two theories.
     From: report of Ernest Nagel (The Structure of Science [1961]) by Jaegwon Kim - Philosophy of Mind p.213
     A reaction: This has been labelled as 'weak' reduction, where 'strong' reduction would be identity, as when lightning is reduced to electrical discharge. You reduce x by showing that it is y in disguise.
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?