Rudolf Steiner:
Turning Points in Spiritual History
SPIRITUAL SCIENCE LIBRARY
(a division of Garber Communications, Inc.)
Blauvelt, New York
SIX LECTURES DELIVERED IN BERLIN
January 19, 1911 – January 25, 19121. Zarathustra (January 19, 1911)
6. Christ and the Twentieth Century (January 25, 1912)
Edited by Harry Collison
Translation by Walter F. Knox
First English Edition, 1934(The first four lectures are part of GA 60 and the last two lectures are part of GA 61)