You have chosen 'On Duties ('De Officiis')' by M. Tullius Cicero, 'On Concept and Object' by Gottlob Frege and 'The Later Works (17 vols, ed Boydston)' by John Dewey
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Science, or select a subheading: |
| A. | Basis of Science | |
| B. | Scientific Theories | |
| C. | Induction | |
| D. | Explanation |