Combining Texts

You have chosen 'The Definition of Good' by A.C. Ewing, 'On the True Doctrine (Against Christians)' by Celsus and 'On the Algebra of Logic' by Charles Sanders Peirce

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