Combining Texts

You have chosen 'Presidential Address of Am. Math. Soc' by Oswald Veblen, 'The Philosophy of History' by Georg W.F.Hegel and 'Believing the Axioms I' by Penelope Maddy

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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