You have chosen 'Two Problems of Epistemology' by Karl Popper, 'De aequopollentia causae et effectus' by Gottfried Leibniz and 'Rules for the Direction of the Mind' by Ren Descartes
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Existence, or select a subheading: |
| A. | Nature of Existence | |
| B. | Change in Existence | |
| C. | Structure of Existence | |
| D. | Theories of Reality | |
| E. | Categories |