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You have chosen , Scott Sturgeon and Leo Tolstoy.
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| 1051 | 1. | Philosophy |
| 624 | 2. | Reason |
| 626 | 3. | Truth |
| 784 | 4. | Formal Logic |
| 1242 | 5. | Theory of Logic |
| 1188 | 6. | Mathematics |
| 1042 | 7. | Existence |
| 881 | 8. | Modes of Existence |
| 1527 | 9. | Objects |
| 799 | 10. | Modality |
| 485 | 11. | Knowledge Aims |
| 713 | 12. | Knowledge Sources |
| 633 | 13. | Knowledge Criteria |
| 675 | 14. | Science |
| 548 | 15. | Nature of Minds |
| 494 | 16. | Persons |
| 495 | 17. | Mind and Body |
| 858 | 18. | Thought |
| 835 | 19. | Language |
| 313 | 20. | Action |
| 270 | 21. | Aesthetics |
| 973 | 22. | Metaethics |
| 991 | 23. | Ethics |
| 924 | 24. | Political Theory |
| 752 | 25. | Social Practice |
| 992 | 26. | Natural Theory |
| 719 | 27. | Natural Reality |
| 429 | 28. | God |
| 302 | 29. | Religion |