You have chosen 'The Mind and the Soul' by Jenny Teichmann, 'Launching Points to the Realm of the Mind' by Porphyry and 'Sources of Knowledge of Mathematics' by Gottlob Frege
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 |