You have chosen 'On the Natural Faculties' by Galen, 'Grounding Concepts' by Carrie Jenkins and 'Letters to a German Princess' by Leonhard Euler
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 |