“For repentance is the greatest prerogative of man. Better is one hour of repentance and good deeds in this world than the whole life of the world to come. The aim of all wisdom is repentance and good deeds. The place where the truly penitent shall stand is higher than that of the righteous. Repentance finds its special expression in prayer; and when it is said in Scripture, ‘Serve God with all thy heart,’ by this is meant, serve Him by prayer, which is even greater than worship by means of sacrifices. Never is a prayer entirely unanswered by God. Therefore, even though the sword be on a man’s neck, let him not cease to supplicate God’s mercy. But regard not thy prayer as a fixed mechanical task, but as an appeal for mercy and grace before the All‐Present; as it is said, ‘For He is gracious and full of mercy, slow to anger, abounding in loving‐kindness, and repenteth him of the evil.’ ” The last two volumes of Weiss’s work deal with the history of Tradition during the Middle Ages, that is, from the conclusion of the Talmud to the compilation of the Code of the Law by R. Joseph Caro. I have already indicated that with Weiss Tradition did not terminate with the conclusion of the Talmud. It only means that a certain undefinable kind of literature, mostly held in dialogue form and containing many elements of Tradition, was at last brought to an end. The authorities who did this editorial work were the so‐called _Rabbanan Saburai_(153) and the _Gaonim_, whose lives and literary activity are fully described by Weiss. But, while thus engaged in preserving their inheritance from the past, they were also enriching Tradition by new contributions, both the Saburai and the Gaonim having not only added to and diminished from the Talmud, but having also introduced avowedly new ordinances and decrees, and created new institutions. Now, it cannot be denied that a few of these ordinances and decrees had a reforming tendency (see the second and twentieth chapters of vol. iv.); in general, however, they took a more conservative turn than was the case in the previous ages. This must be ascribed to the event of the great schism within the Rabbinical camp itself. I refer to the rise of Caraism, which took place during the first half of the eighth century.