Combining Texts

You have chosen 'Letter to Shumacher' by Carl Friedrich Gauss, 'Essay Conc Human Understanding (2nd Ed)' by John Locke and 'True Method in Philosophy and Theology' by Gottfried Leibniz

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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