Combining Texts

You have chosen 'Aesthetic as Science of Expression' by Benedetto Croce, 'Frege on Apriority (with ps)' by Tyler Burge and 'Introduction to Philosophical Papers I' by David Lewis

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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