Combining Texts

You have chosen 'New System and Explanation of New System' by Gottfried Leibniz, 'The Foundations of Mathematics' by Frank P. Ramsey and 'The Passions of the Soul' by Ren Descartes

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