You have chosen 'Two Problems of Epistemology' by Karl Popper, 'Principles of Philosophy of the Future' by Ludwig Feuerbach and 'Summa quaestionum super Sententias' by Peter John Olivi
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Natural Reality, or select a subheading: |
| A. | Classical Physics | |
| B. | Modern Physics | |
| C. | Space | |
| D. | Time | |
| E. | Cosmology | |
| F. | Chemistry | |
| G. | Biology |