You have chosen 'On the Nature of the Gods ('De natura deorum')' by M. Tullius Cicero, 'The Mind and the Soul' by Jenny Teichmann and 'The Boundary Stones of Thought' by Ian Rumfitt
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 |