You have chosen 'Principle of Life and Plastic Natures' by Gottfried Leibniz, 'Utilitarianism and the Virtues' by Philippa Foot and 'The Concept of Truth for Formalized Languages' by Alfred Tarski
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 |