Description Written in 1909 (CW 13) Given his energetic involvement in practical initiatives and extensive lecturing, Steiner had very little time to write.
Of the books he found time to write, four titles are considered indispensable introductions to his teaching as a whole: How to Know Higher Worlds; An Outline of Esoteric Science; Intuitive Thinking As a Spiritual Path; and Theosophy.
With the exception of his Anthroposophical Leading Thought.
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