You have chosen 'Lectures on Ethics' by Immanuel Kant, 'Letters to Leibniz 1' by Isaac Newton and 'Ancient Thought in Modern Physics' by Werner Heisenberg
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 |