You have chosen 'Human Flourishing, Ethics and Liberty' by Gilbert Harman, 'Launching Points to the Realm of the Mind' by Porphyry and 'Critique of the Gotha Program' by Karl Marx
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 |