You have chosen 'Exigency to Exist in Essences' by Gottfried Leibniz, 'The Philosophy of the Inductive Sciences' by William Whewell and 'Introduction to the Philosophy of Mind' by Keith T. Maslin
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 |