You have chosen 'The Birth of Tragedy' by Friedrich Nietzsche, 'True in Theory, but not in Practice' by Immanuel Kant and 'Exigency to Exist in Essences' by Gottfried Leibniz
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 |