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Matter / material world / outer world / reality / reality / Berkeley: there is no material substance - but probably an outer reality! - I 232 involuntary perception is a moment of reality.
Danto I 202
LockeVsBerkeley: there are objects to be compared.
Berkeley - Schopenhauer: only two kinds of things: consciousness and its contents.
World / reality / Berkeley / Danto: there is nothing but ideas - but we do not sit in a cage that shields us from the world. - BerkeleyVsPlaton: there is no cage because there is no distinction between inside and outside.
Science / Berkeley: does not refer to a reality behind the experience, but the experience itself.
I Breidert Berkeley: Wahrnnehmung und Wirklichkeit, aus Speck(Hg) Grundprobleme der gr. Philosophen, Göttingen (UTB) 1997
A. C. Danto
The Philosophical Disenfranchisement of Art (Columbia Classics in Philosophy) New York 2005