A preface to Kierkegaard.--Tolstoy versus Dostoevsky.--Nietzsche and existentialism.--Buber's religious significance.--Buber's I and thou.--The reception of existentialism in the United States.--Beyond black and white.--The faith of a heretic.--The future of Jewish identity.--The future of the Jews in the Diaspora.--Existentialism and death.--On death and lying.--Death without dread.