You have chosen 'The Case for Closure' by John Hawthorne, 'Intro to 2nd ed of Principia Mathematica' by Bertrand Russell and 'On the Happy Life' by Seneca the Younger
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 |