You have chosen 'Primitive Thisness and Primitive Identity' by Robert Merrihew Adams, 'Notes on John Wilkins' by Gottfried Leibniz and 'The Poverty of Philosophy' by Karl Marx
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 |