You have chosen 'Isagoge ('Introduction')' by Porphyry, 'What We Owe to Each Other' by Thomas M. Scanlon and 'Why Constitution is not Identity' by Lynne Rudder Baker
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Natural Theory, or select a subheading: |
| A. | Speculations on Nature | |
| B. | Natural Kinds | |
| C. | Causation | |
| D. | Laws of Nature |