You have chosen 'On the Conservation of Force' by Hermann von Helmholtz, 'Letters to Des Bosses' by Gottfried Leibniz and 'Precepts for Advancing Science and Arts' 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 |