You have chosen 'Two Problems of Epistemology' by Karl Popper, 'The Problem of Counterfactual Conditionals' by Nelson Goodman and 'Of Organum or Ars Magna of Thinking' by Gottfried Leibniz
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 |