You have chosen 'Sources of Knowledge of Mathematics' by Gottlob Frege, 'Fourfold Root of Princ of Sufficient Reason' by Arthur Schopenhauer and 'Lectures on the Philosophy of Right' by Georg W.F.Hegel
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 |