You have chosen 'On Duties ('De Officiis')' by M. Tullius Cicero, 'Nature and Observability of Causal Relations' by Curt Ducasse and 'My Philosophical Development' by Bertrand Russell
start again | choose another area for these texts | all the ideas for this combination of texts| All the ideas for Modes of Existence, or select a subheading: |
| A. | Relations | |
| B. | Properties | |
| C. | Powers and Dispositions | |
| D. | Universals | |
| E. | Nominalism |