GA 80c
| No. | Lecture Title | Book Title | Date | City | 1. | Anthroposophical Spiritual Science and the Great Questions of Civilization Today | Not Yet Available | 19 Feb 1921 | Amsterdam | 6. | Lecture for the "Philosophical Society" Philosophy and Anthroposophy | Not Yet Available | 1 Mar 1921 | Amsterdam | 5. | Lecture for the Society "Free Study" of Students from the Technical University in the Economic Life of the Threefold Social Order | Not Yet Available | 25 Feb 1921 | Delft | 9. | Supersensible Knowledge and the Present-Day Science | Not Yet Available | 6 Nov 1922 | Delft | 2. | The Science of the Spirit and Modern Questions | Man as a Being of Spirit and Soul | 20 Feb 1921 | Hilversum | 4. | Anthroposophical Spiritual Science and the Great Questions of Civilization Today | Not Yet Available | 23 Feb 1921 | The Hague | 7. | Knowledge of the Spiritual Nature of Man | Not Yet Available | 31 Oct 1922 | The Hague | 8. | Knowledge of the Spiritual Being of the Universe | Not Yet Available | 3 Nov 1922 | The Hague | 3. | Anthroposophical Spiritual Science and the Great Questions of Civilization Today | Not Yet Available | 21 Feb 1921 | Utrecht |
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