You have chosen 'Scientific Thought' by C.D. Broad, 'The Realm of Matter' by George Santayana and 'Principia Mathematica' by Isaac Newton
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 |