You have chosen 'Existence and Quantification' by Willard Quine, 'True in Theory, but not in Practice' by Immanuel Kant and 'The Tragic Sense of Life' by Miguel de Unamuno
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 |