The Rule of St. Benedict is as important as any constitution that was ever drawn up for a state. It is for the most part natural and wholesome. It provides that, since every one is not fitted for the ascetic life, the candidate for admission to the monastery shall pass through a period of probation, called the _novitiate_, before he is permitted to take the solemn and irrevocable vow. The brethren shall elect their head, the _abbot_, whom they must obey unconditionally in all that is not sinful. Along with prayer and meditation, the monks are to work at manual occupations and cultivate the soil. They shall also read and teach. Those who were incapacitated for outdoor work were assigned lighter tasks, such as copying books. The monk was not permitted to own anything in his own right; he pledged himself to perpetual and absolute poverty, and everything he used was the property of the convent. Along with the vows of obedience and poverty, he also took that of chastity, which bound him never to marry. For not only was the single life considered more holy than the married, but the monastic organization would, of course, have been impossible unless the monks remained single. Aside from these restrictions, the monks were commanded to live rational and natural lives and not to abuse their bodies or sacrifice their physical vigor by undue fasting in the supposed interest of their souls. These sensible provisions were directed against the excesses of asceticism, of which there had been many instances in the East. [Sidenote: The monks copy, and so preserve, the Latin authors.] The influence of the Benedictine monks upon Europe is incalculable. From their numbers no less than twenty-four popes and forty-six hundred bishops and archbishops have been chosen. They boast almost sixteen thousand writers, some of great distinction. Their monasteries furnished retreats where the scholar might study and write in spite of the prevailing disorder of the times. The copying of books, as has been said, was a natural occupation of the monks. Doubtless their work was often done carelessly, with little heart and less understanding. But, with the great loss of manuscripts due to the destruction of libraries and the indifference of individual book-owners, it was most essential that new copies should be made. Even poor and incorrect ones were better than none. It was the monks who prevented the loss of a great part of Latin literature, which, without them, would probably have reached us only in scanty remains. [Sidenote: The monks aid in the material development of Europe.]