You have chosen 'Theory of Knowledge (2nd edn)' by Keith Lehrer, 'Natural Minds' by Thomas W. Polger and 'On the Ultimate Origination of Things' by Gottfried Leibniz
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 |