Combining Texts

You have chosen 'Mind and Its Place in Nature' by C.D. Broad, 'Of Organum or Ars Magna of Thinking' by Gottfried Leibniz and 'How Things Might Have Been' by Penelope Mackie

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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