You have chosen 'The Sign of Four' by Arthur Conan Doyle, 'works' by Gottlob Frege and 'Principles of Nature and Grace based on Reason' by Gottfried Leibniz
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Knowledge Aims, or select a subheading: |
| A. | Knowledge | |
| B. | Certain Knowledge | |
| C. | Knowing Reality |