References
- Steiner , Rudolf . 1902 . Das Christentum als Mystische Tatsache , London, W.C.1. : Stuttgart . English translation: Christianity as Mystical Fact, Rudolf Steiner Publishing Co., 54 Bloomsbury Street,
- Steiner , Rudolf . 1894 . Die Philosophie der Freiheit , London, W.C.1. : Stuttgart . English translation: The Philosophy of Spiritual Activity, Same Publisher,
- Steiner , Rudolf . 1940 . Grundlinien einer Erkenntnistheorie der Goetheschen Weltanschauung , New York : Anthroposophic Press . First published 1886. English translation: The Theory of Knowledge,
- Harwood , A. C. , ed. 1961 . The Faithful Thinker , Centenary Essays on the Work and Thought of Rudolf Steiner, 1861‐1925 London : Hodder and Stoughton .