You have chosen 'On the Nature of the Gods ('De natura deorum')' by M. Tullius Cicero, 'Of Organum or Ars Magna of Thinking' by Gottfried Leibniz and 'Regressive Method for Premises in Mathematics' by Bertrand Russell
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 |