In 1918 Dr. Steiner published a revised edition of the Philosophie der Freiheit. For the translation of the new passages added to, and of the incidental changes made in, this revised edition I am indebted to Mr. HoernlÉ, now Professor of Philosophy in the Armstrong College (Newcastle-upon-Tyne), University of Durham.

At the author’s request I have changed the title to Philosophy of Spiritual Activity, and throughout the entire work “freedom” should be taken to mean “spiritual activity.”

Dr. Steiner’s Ph. D. Thesis on “Truth and Science,” originally published as a prelude to The Philosophy of Freedom, has, with his consent, been translated for this edition and been added at the end of this volume.

H. C.

March 1921.