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Plotinos: Complete Works, v. 3 In Chronological Order,...

DISAPPEARANCE OF THE FORM IMPLIES THAT OF THE SIZE.

Project Gutenberg EPUB3 edition Plotinus and Guthrie, Kenneth Sylvan
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The distant object seems to us close because our inability to distinguish the parts of the intervening space does not permit us to determine exactly its magnitude. When sight can no longer traverse the length of an interval by determining its quality, in respect to its form, neither can it any longer determine its quantity in respect to magnitude.

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Plotinos: Complete Works, v. 3 In Chronological Order, Grouped in Four Periods, Project Gutenberg eBook #42932

DIFFERENCES OF COLOR AID IN THE PERCEPTION OF MAGNITUDE. REFUTATION OF ARISTOTLE'S "VISUAL ANGLE" THEORY.