Combining Texts

You have chosen 'The Periodic Table' by Eric R. Scerri, 'Between Facts and Norms' by Jrgen Habermas and 'New system of communication of substances' by Gottfried Leibniz

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All the ideas for Natural Theory, or select a subheading:
      A. Speculations on Nature
      B. Natural Kinds
      C. Causation
      D. Laws of Nature