You have chosen 'Theses on Feuerbach' by Karl Marx, 'Open Society and Its Enemies:Hegel and Marx' by Karl Popper and 'Commentary on Sentences' by Francis of Marchia
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 |