You have chosen 'How to Make our Ideas Clear' by Charles Sanders Peirce, 'The Unimportance of Identity' by Derek Parfit and 'The Problem of Knowledge' by A.J. Ayer
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 |