Not all human conduct has this character. There are many cases in which we do not know the laws of our conduct. This part of our conduct is the unfree part of our activity. Over against it stands the part the laws of which we make completely our own. This is the realm of freedom. It is only in so far as our life falls into this realm that it can be called moral. To transform the actions which are unfree into actions which are free--this is the task of self-development for every individual, this is likewise the task of the whole human race. Thus, the most important problem for all human thinking is to conceive man as a personality grounded upon itself and free. APPENDICES APPENDIX I ADDITION TO THE REVISED EDITION OF "THE PHILOSOPHY OF FREEDOM," 1918. Various criticisms on the part of philosophers with which this book met immediately upon its publication, induce me to add to this Revised Edition the following brief statement. I can well understand that there are readers who are interested in the rest of the book, but who will look upon what follows as a tissue of abstract concepts which to them is irrelevant and makes no appeal. They may, if they choose, leave this brief statement unread. But in philosophy problems present themselves which have their origin rather in certain prejudices on the thinker's part than in the natural progression of normal human thinking. With the main body of this book it seems to me to be the duty of every one to concern himself, who is striving for clearness about the essential nature of man and his relation to the world. What follows is rather a problem the discussion of which certain philosophers demand as necessary to a treatment of the topics of this book, because these philosophers, by their whole way of thinking, have created certain difficulties which do not otherwise occur. If I were to pass by these problems entirely, certain people would be quick to accuse me of dilettantism, etc. The impression would thus be created that the author of the views set down in this book has not thought out his position with regard to these problems because he has not discussed them in his book.