You have chosen 'Lectures on the History of Philosophy' by Georg W.F.Hegel, 'The Origin of the Species' by Charles Darwin and 'The Tragic Sense of Life' by Miguel de Unamuno
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 |