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You have chosen R.G. Collingwood, Pierre Duhem and Peter (Pyotr) Kropotkin.
Display all ideas for these philosophers, or choose an area below:
| 1033 | 1. | Philosophy |
| 614 | 2. | Reason |
| 617 | 3. | Truth |
| 784 | 4. | Formal Logic |
| 1241 | 5. | Theory of Logic |
| 1186 | 6. | Mathematics |
| 1028 | 7. | Existence |
| 872 | 8. | Modes of Existence |
| 1520 | 9. | Objects |
| 795 | 10. | Modality |
| 479 | 11. | Knowledge Aims |
| 704 | 12. | Knowledge Sources |
| 630 | 13. | Knowledge Criteria |
| 671 | 14. | Science |
| 532 | 15. | Nature of Minds |
| 487 | 16. | Persons |
| 488 | 17. | Mind and Body |
| 775 | 18. | Thought |
| 833 | 19. | Language |
| 301 | 20. | Action |
| 242 | 21. | Aesthetics |
| 935 | 22. | Metaethics |
| 950 | 23. | Ethics |
| 870 | 24. | Political Theory |
| 723 | 25. | Social Practice |
| 986 | 26. | Natural Theory |
| 704 | 27. | Natural Reality |
| 426 | 28. | God |
| 289 | 29. | Religion |