Naturkork statt Leder

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Man himself, insofar as he uses his healthy senses, is the greatest and most accurate physical apparatus that there can be, and that is precisely what is of the greatest harm to modern physics, that one has, as it were, separated experiments from man; one wants to know nature merely through what manmade instruments show, yes, wants to limit and prove thereby what nature can do.

Johann Wolfgang von Goethe