Combining Texts

You have chosen 'fragments/reports' by Archelaus, 'Il Saggiatore ('The Assayer')' by Galileo Galilei and 'Change in View: Principles of Reasoning' by Gilbert Harman

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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