You have chosen 'Conceptual truth and metaphysical necessity' by Robert C. Stalnaker, 'The Decline of the West' by Oswald Spengler and 'Queries to the 'Opticks'' by Isaac Newton
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 |