Avraham Shapira is Professor, Department of Jewish History, Tel Aviv University. He is the author of The Kabbalistic and Hasidic Sources of A.D. Gordon's Thought.

Contents
Preface
Introduction
Comments on Buber's Means of Expression
1. Polar Duality
2. The Cause and the Person: Destiny and Vocation
3. A Divided Heart and Man's Double
4. Existential Tensions and Early Struggles
5. A Conversion
6. Duality and Its Structures
7. Distance - Relation
8. Vortex - Direction
9. Moment - Eternity
10. Concluding Remarks
Notes
Bibliography
Index