Combining Texts

You have chosen 'Many, but almost one' by David Lewis, 'Tusculan Disputations' by M. Tullius Cicero and 'Explaining Explanation' by David-Hillel Ruben

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