Combining Texts

You have chosen 'Causality and Properties' by Sydney Shoemaker, 'Dialogue on human freedom and origin of evil' by Gottfried Leibniz and 'Intro to 2nd ed of Principia Mathematica' by Bertrand Russell

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