You have chosen 'Must We Believe in Set Theory?' by George Boolos, 'On the True Doctrine (Against Christians)' by Celsus and 'Parerga and Paralipomena' by Arthur Schopenhauer
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 |