You have chosen 'The Analysis of Matter' by Bertrand Russell, 'Two Chief World Systems' by Galileo Galilei and 'Principles of Philosophy of the Future' by Ludwig Feuerbach
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 |