Combining Texts

You have chosen 'Causal Powers' by Harré,R./Madden,E.H., 'On the Soul (frags)' by Dicaearchus and 'Is Justified True Belief Knowledge?' by Edmund L. Gettier

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