You have chosen 'The Middle Works (15 vols, ed Boydston)' by John Dewey, 'Of Organum or Ars Magna of Thinking' by Gottfried Leibniz and 'Letters to De Vries' by Baruch de Spinoza
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 |