Combining Texts

You have chosen 'Dialogue on human freedom and origin of evil' by Gottfried Leibniz, 'What is the Basis of Moral Obligation?' by H.A. Prichard and 'Three Grades of Modal Involvement' by Willard Quine

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