You have chosen 'A Discourse on Method' by René Descartes, 'Abstract of 'The Fourfold Root'' by Arthur Schopenhauer and 'How to Make our Ideas Clear' by Charles Sanders Peirce
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 |