You have chosen 'Two treatises' by Kenelm Digby, 'On Nature Itself (De Ipsa Natura)' by Gottfried Leibniz and 'Investigations in the Foundations of Set Theory I' by Ernst Zermelo
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Knowledge Sources, or select a subheading: |
| A. | A Priori Knowledge | |
| B. | Perception | |
| C. | Rationalism | |
| D. | Empiricism | |
| E. | Direct Knowledge |