locke - Phil 104 s11 2 5 Hoversten Locke Berkeley Hume...

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Phil 104, s11 Locke, Berkeley, Hume §§ 2, 5: Hoversten Sources of ideas Empiricism The thesis that there are no innate ideas. All ideas have their origin in some form of experience . Locke, Berkeley, Hume Rationalism The thesis that at least some of our ideas have their source in pure reason, independent of experience. Descartes 1 Locke’s theory of ideas Ideas Immediate objects of thought and perception The mind’s representation of the world Simple Reflection Produced by the mind reflecting on its own operations Sensation Produced by something conveyed from external objects to the mind, via the senses Qualities The power of objects to produce ideas in the mind The means by which we come to know of external objects Primary Inseparable from the object Resemble their ideas Solidity Extension Shape Motion Number Secondary Powers of the object to produce sensations in us Depend on the primary qualities Don’t resemble their ideas Sound Color Taste Complex Combinations of the mind’s stock of simple ideas 1
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Phil 104, s11 Locke, Berkeley, Hume §§ 2, 5: Hoversten Secondary qualities These are mere powers of an object to produce sensations in us. They are not in the objects in the way that primary qualities are. We say that warmth is in the fire while pain is not. But what is the di ff erence between the two? They are simply powers to cause sensations in us. It seems intuitively that if we were to eliminate sensing beings, the primary qualities would remain, but the secondary qualities would be eliminated. The ideas produced in us by the secondary qualities can change with context, even though the object is not altered at all. This suggests that the secondary qualities are as much about us as they are about the objects.
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