You have chosen 'The Sign of Four' by Arthur Conan Doyle, 'The Epistemology of Essence (draft)' by Tuomas E. Tahko and 'Tusculan Disputations' by M. Tullius Cicero
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 |