Combining Texts

You have chosen 'What is Good?st1=A.C. Grayling' by , 'Defending the Axioms' by Penelope Maddy and 'Mirror Mirror - Is That All?' by Robert van Gulick

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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