Combining Texts

You have chosen 'works (all lost)' by Aristippus the elder, 'On Divination ('De divinatione')' by M. Tullius Cicero and 'Sources of Knowledge of Mathematics' by Gottlob Frege

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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