Combining Texts

You have chosen 'Contrib to Critique of Hegel's Phil of Right' by Karl Marx, 'Introductions to Utilitarianism and its Critics' by Jonathan Glover and 'Pacidius Philalethi dialogue' by Gottfried Leibniz

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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