Combining Texts

You have chosen 'Reply to 'Rorarius' 2nd ed' by Gottfried Leibniz, 'Aristotle on Learning to be Good' by Myles F. Burnyeat and 'Letters to Thomas Burnett' 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