Combining Texts

You have chosen 'A Discourse on Method' by René Descartes, 'Between Facts and Norms' by Jrgen Habermas and 'An American Indian model of the Universe' by Benjamin Lee Whorf

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All the ideas for Natural Reality, or select a subheading:
      A. Classical Physics
      B. Modern Physics
      C. Space
      D. Time
      E. Cosmology
      F. Chemistry
      G. Biology