You have chosen 'A Realistic Theory of Categories' by Roderick Chisholm, 'Letters to Russell' by Ludwig Wittgenstein and 'On the Nature of the Gods ('De natura deorum')' 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 |