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P.142,143,144 of book Tautological Oxymorons. Werner Heisenberg "... what we observe is not nature itself, but nature exposed to our method of questioning...." quoted in Fitjof Capra's "The Tao of Physics, " (Shambhala Publications, 1999), p.140 and Carl Jung quote.
From From http://tautology.wikia.com/wiki/Logical_fallacies#Can_God_not_make_a_stone_so_that_he_can_lift_it.3F
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This article discusses contemporary response to the epistemic regress problem or Agrippa's trilemma. The epistemic regress problem is considered the most crucial in the entire theory of knowledge and it is a major concern for many contemporary epistemologists. However, only two of the three alternative solutions have been developed in any detail, foundationalism and coherentism. Infinitism was not seriously considered as a solution because of the finite-mind objection. This article also provides a brief evaluation of foundationalism, emergent coherentism, and infinitism. http://www.oxfordhandbooks.com/view/10.1093/oxfordhb/9780195183214.001.0001/oxfordhb-9780195183214-e-23