You have chosen 'Theory of Knowledge (2nd edn)' by Keith Lehrer, 'Against the Professors (six books)' by Sextus Empiricus and 'The Poverty of Philosophy' by Karl Marx
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 |