Combining Texts

You have chosen 'Philosophical Essay on Probability' by Pierre Simon de Laplace, 'On Fate ('De fato')' by M. Tullius Cicero and 'On the Foundations of Logic and Arithmetic' by David Hilbert

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All the ideas for Natural Theory, or select a subheading:
      A. Speculations on Nature
      B. Natural Kinds
      C. Causation
      D. Laws of Nature