Combining Texts

You have chosen 'There are no ordinary things' by Peter Unger, 'On the Conservation of Force' by Hermann von Helmholtz and 'Naming and Necessity lectures' by Saul A. Kripke

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All the ideas for Objects, or select a subheading:
      A. Existence of Objects
      B. Unity of Objects
      C. Structure of Objects
      D. Essence of Objects
      E. Objects over Time
      F. Identity among Objects