| 441 | 1. | Wisdom |
| 347 | 2. | Reason |
| 561 | 3. | Formal Logic |
| 875 | 4. | Theory of Logic |
| 708 | 5. | Mathematics |
| 302 | 6. | Scientific Reasoning |
| 273 | 7. | Truth |
| 1949 | 8. | Ontology |
| 525 | 9. | Modality |
| 350 | 10. | Knowledge Aims |
| 488 | 11. | Knowledge Sources |
| 453 | 12. | Knowledge Criteria |
| 323 | 13. | Nature of Minds |
| 355 | 14. | Persons |
| 449 | 15. | Mind and Body |
| 549 | 16. | Thought |
| 545 | 17. | Language |
| 107 | 18. | Action |
| 91 | 19. | Aesthetics |
| 578 | 20. | Metaethics |
| 643 | 21. | Ethics |
| 150 | 22. | Applied Ethics |
| 286 | 23. | Society |
| 839 | 24. | Natural Theory |
| 178 | 25. | Natural Reality |
| 317 | 26. | God |
| 196 | 27. | Religion |
| 305 | 28. | Thinkers to 200 CE |
| 212 | 29. | Thinkers 200 to 1850 |
| 182 | 30. | Thinkers since 1850 |