For many years my book has been out of print. In spite of the fact, which is apparent from what I have just said, that my utterances of twenty-five years ago about these problems still seem to me just as relevant today, I hesitated a long time about the completion of this revised edition. Again and again I have asked myself whether I ought not, at this point or that, to define my position towards the numerous philosophical theories which have been put forward since the publication of the first edition. Yet my preoccupation in recent years with researches into the purely Spiritual Realm prevented my doing as I could have wished. However, a survey, as thorough as I could make it, of the philosophical literature of the present day has convinced me that such a critical discussion, alluring though it would be in itself, would be out of place in the context of what my book has to say. All that, from the point of view of the Philosophy of Spiritual Activity, it seemed to me necessary to say about recent philosophical tendencies may be found in the second volume of my Riddles of Philosophy. RUDOLF STEINER. April 1918. THE THEORY OF FREEDOM I CONSCIOUS HUMAN ACTION Is man free in action and thought, or is he bound by an iron necessity? There are few questions on which so much ingenuity has been expended. The idea of freedom has found enthusiastic supporters and stubborn opponents in plenty. There are those who, in their moral fervour, label anyone a man of limited intelligence who can deny so patent a fact as freedom. Opposed to them are others who regard it as the acme of unscientific thinking for anyone to believe that the uniformity of natural law is broken in the sphere of human action and thought. One and the same thing is thus proclaimed, now as the most precious possession of humanity, now as its most fatal illusion. Infinite subtlety has been employed to explain how human freedom can be consistent with determinism in nature of which man, after all, is a part. Others have been at no less pains to explain how such a delusion as this could have arisen. That we are dealing here with one of the most important questions for life, religion, conduct, science, must be clear to every one whose most prominent trait of character is not the reverse of thoroughness. It is one of the sad signs of the superficiality of present-day thought, that a book which attempts to develop a new faith out of the results of recent scientific research (David Friedrich Strauss, Der alte und neue Glaube), has nothing more to say on this question than these words: "With the question of the freedom of the human will we are not concerned. The alleged freedom of indifferent choice has been recognised as an empty illusion by every philosophy worthy of the name. The determination of the moral value of human conduct and character remains untouched by this problem." It is not because I consider that the book in which it occurs has any special importance