Philosophy of Spiritual Activity
Fundamentals of a Modern World Conception
By Rudolf Steiner
Copyright © 1939
Sixth edition, based on the original authorized Translation by
Prof. and Mrs. R. F. Alfred Hoernlé, revised and amended by
Hermann Poppelbaum, Phil.D.
This volume is presented here with the kind permission of the Rudolf
Steiner Nachlassverwaltung, Dornach, Switzerland.
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