Combining Texts

You have chosen 'Tusculan Disputations' by M. Tullius Cicero, 'Of Organum or Ars Magna of Thinking' by Gottfried Leibniz and 'Lives of Eminent Philosophers' by Diogenes Laertius

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All the ideas for Knowledge Aims, or select a subheading:
      A. Knowledge
      B. Certain Knowledge
      C. Knowing Reality