You have chosen 'Function and Concept' by Gottlob Frege, 'Of Organum or Ars Magna of Thinking' by Gottfried Leibniz and 'De Ente et Essentia (Being and Essence)' by Thomas Aquinas
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 |