Steiner, Rudolf (rōˈdôlf shtĪnˈər) [key], 1861–1925, German occultist and social philosopher. He was a leader in the founding of the German Theosophic Association (see theosophy). In time he abandoned theosophy and developed a distinctive philosophy which he called anthroposophy; this philosophy attempts to explain the world in terms of man's spiritual nature, or thinking independent of the senses. Translations of his works include Investigations in Occultism (1920) and Philosophy of Spiritual Activity (1922). He also wrote many works on Goethe.
See his autobiography (rev. tr. 1951, repr. 1970).