This work, essentially Rudolf Steiner's doctoral dissertation, subtitled "Introduction to the Philosophy of Freedom," is just that--an essential work in the foundations of spiritual science. In it, the epistemological foundations of spiritual knowledge are clearly and logically presented. Originally published with in a single volume, this work is fundamental to an understanding of that work ( ) and to a more complete comprehension of the philosophical basis of Steiner's spiritual science. This book is essential reading for all serious students of Anthroposophy. is a translation from German of (GA 3).