Combining Texts

You have chosen 'works (all lost)' by Aristippus the elder, 'On the Law of War' by Francis de Vitoria and 'A Specimen of Discoveries' by Gottfried Leibniz

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All the ideas for Science, or select a subheading:
      A. Basis of Science
      B. Scientific Theories
      C. Induction
      D. Explanation