Combining Texts

You have chosen 'Logic (Encyclopedia I)' by Georg W.F.Hegel, 'The Passions of the Soul' by René Descartes and 'The Moral Problem' by Michael Smith

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All the ideas for Natural Reality, or select a subheading:
      A. Classical Physics
      B. Modern Physics
      C. Space
      D. Time
      E. Cosmology
      F. Chemistry
      G. Biology