You have chosen 'Letter to G.H. Schaller' by Baruch de Spinoza, 'Philosophy of Natural Science' by Carl Hempel and 'The Blue and Brown Notebooks' by Ludwig Wittgenstein
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 |