Combining Texts

You have chosen 'A Specimen of Discoveries' by Gottfried Leibniz, 'The Problem of Natural Laws' by L. Jonathan Cohen and 'The Inference to the Best Explanation' by Gilbert Harman

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All the ideas for Thought, or select a subheading:
      A. Modes of Thought
      B. Mechanics of Thought
      C. Content
      D. Concepts
      E. Abstraction