Idealism - Idealism The Atomic Theory of Matter The atomic...

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    Idealism  
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    The Atomic Theory of  Matter The atomic theory poses a  challenge to theories of  substances or objects Atomic theory: things are  composed of atoms;  properties of things  depend on nature and  motion of atoms Things are not as they  appear
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    Nature and Quiddity We typically define a kind in terms  of its perceptual properties--the  things corresponding to its  definition in the the world--its  quiddity But what makes it what it is--its  nature--is its atomic structure Nature≠quiddity; nature =>quiddity
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    Appearance and Reality Aristotle:  objects cause  perceptions, and are represented  in them Causes of perception = objects of  perception Atomic Theory:  No—  causes are the atoms— which  are  real objects are appearances
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    Causes and Effects Causes of perception are the  atoms We don’t see atoms, but their  effects What we see doesn’t exist in reality How can we distinguish the  aspects of the effects  (appearances) that do match the  causes?
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    Primary Qualities Descartes : We perceive  clearly and distinctly only  the mathematical properties  of objects: size, shape,  motion Only they reflect the true  natures of things
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    Primary Qualities Locke Primary  qualities are  inseparable from objects;  atoms have them Primary qualities are those  objects possess according to  the atomic theory of matter They produce simple ideas in  us that resemble the primary  qualities in the objects
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    Secondary Qualities Secondary  qualities are  effects of objects on our  nervous systems They produce ideas in us that  do NOT resemble them
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    Secondary Qualities Secondary qualities  depend on primary  qualities Secondary qualities are  response-dependent : to  have one is just to produce  a certain effect in a  perceiver
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This note was uploaded on 03/19/2008 for the course PHL 301 taught by Professor Bonevac during the Fall '08 term at University of Texas at Austin.

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Idealism - Idealism The Atomic Theory of Matter The atomic...

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