You have chosen 'Philosophical Essay on Probability' by Pierre Simon de Laplace, 'Philosophy of Natural Science' by Carl Hempel and 'Rules for the Direction of the Mind' by Ren Descartes
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 |