Transformations

I had hoped to write this book so that it could be read independently of Learning from Experience and Elements of Psycho-Analysis, but I soon found this impossible without an intolerable degree of repetition. The other two books are therefore still necessary for the understanding of this one. I regret this; there are some things I said before which I would now say differently. But any reader who thinks the subject is as important as I do will find it rewarding ifhe can think the thought through despite defects of presentation.

w. R. B.