You have chosen 'Questions on Aristotle's Physics' by John Buridan, 'New system of communication of substances' by Gottfried Leibniz and 'U.S. Declaration of Independence' by Thomas Jefferson
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 |