Combining Texts

You have chosen 'Letter to G.H. Schaller' by Baruch de Spinoza, 'Believing the Axioms I' by Penelope Maddy and 'Public Text and Common Reader' by Roger Scruton

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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