You have chosen 'Function and Concept' by Gottlob Frege, 'On Nature Itself (De Ipsa Natura)' by Gottfried Leibniz and 'Moral Philosophy meets social psychology' by Gilbert Harman
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 |