You have chosen 'What is Art?' by Leo Tolstoy, 'Intro to 'Provenance of Pure Reason'' by William W. Tait and 'Presidential Address of Am. Math. Soc' by Oswald Veblen
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 |