You have chosen 'Summa quaestionum super Sententias' by Peter John Olivi, 'From an Ontological Point of View' by John Heil and 'Opus Maius (major works)' by Roger Bacon
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 |