| 01 | Plato's Theory of Forms | 57.1 |
| 02 | Socratic Self-Examination | 40.0 |
| 03 | Existentialism | 40.0 |
| 04 | Socratic Method | 37.7 |
| 05 | Utilitarianism | 37.0 |
| 06 | The Social Contract | 36.9 |
| 07 | The Categorical Imperative | 34.8 |
| 08 | Cogito Ergo Sum | 33.8 |
| 09 | Marxism | 32.9 |
| 10 | Empiricism | 25.6 |
| 11 | Aristotle’s virtue ethics | 20.3 |
| 12 | Phenomenology | 19.8 |
| 13 | First Cause | 19.2 |
| 14 | Stoicism | 18.7 |
| 15 | Natural law | 17.7 |
| 16 | Rationalism | 15.8 |
| 17 | Mechanical Worldview | 15.6 |
| 18 | Cartesian Dualism | 15.4 |
| 19 | The scientific method | 15.4 |
| 20 | Human Rights and Justice | 14.7 |
| 21 | Animal Rights | 14.1 |
| 22 | Logical positivism | 13.8 |
| 23 | The Golden Rule | 10.5 |
| 24 | stanford.edu | 10.0 |
| 25 | aru.ac.uk | 7.7 |
| 26 | Cartesian Doubt | 6.8 |
| 27 | Kant's Transcendental Idealism | 6.2 |
| 28 | wikipedia.org | 5.6 |
| 29 | Critique of Power and Knowledge | 5.4 |
| 30 | Rawlsian Justice | 5.3 |