You have chosen 'Reference and Generality (3rd ed)' by Peter Geach, 'The Principles of Mathematics' by Bertrand Russell and 'The Principles of Human Knowledge' by George Berkeley
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 |