Combining Texts

You have chosen 'Ethics: Inventing Right and Wrong' by J.L. Mackie, 'The Relation of Sense-Data to Physics' by Bertrand Russell and 'De Veritate (On Truth)' by Anselm

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