You have chosen 'The Fixation of Belief' by Charles Sanders Peirce, 'Investigations in the Foundations of Set Theory I' by Ernst Zermelo and 'On the Basis of Morality' by Arthur Schopenhauer
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 |