You have chosen 'On Plural Reference and Set Theory' by Helen Cartwright, 'On the Nature of the Universe' by Lucretius and 'The Decline of the West' by Oswald Spengler
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 |