For five decades prior to his death in 1993, Rabbi Joseph Dov Soloveitchik was the unchallenged leader of modern Orthodox Judaism in the United States. His understanding of both traditional Judaism and secular philosophy shaped two generations of rabbinic students at Yeshiva University and charted a new course for American Orthodox Jews. In On Repentance, noted scholar Pinchas Peli has gathered the major points of Rabbi Soloveitchik's teachings in teshuvah (repentance), based on the annual series of lectures on the theme of teshuvah, presented on the anniversary of his father's death. For many Jews, these lectures were the major academic and intellectual event of the year. Outside of his followers however, few were able to experience the genius of Rabbi Soloveitchik. He gave his lectures in Yiddish, and generally refused to publish. Now readers can experience the brilliant thinking of this great teacher and sage.