Combining Texts

You have chosen 'In Defense of Essentialism' by L.A. Paul, 'Persons, Character and Morality' by Bernard Williams and 'Counting and the Natural Numbers' by Jeffrey H. Sicha

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