Rule of St. Benedict Chapter 48
Idleness is the enemy of the soul, and therefore the brethren ought to divide their time between manual labor and devout reading. In the summer then, they should go out at dawn for four hours, to do the necessary work, and then spend two hours reading. Then, after lunch, let them rest in bed in complete silence — or if anyone wants to read for himself, let him read quietly enough not to disturb others. [Reading silently to oneself was almost unheard of.] If, however, the needs of the place, or poverty should require them to do the work of gathering the harvest themselves, let them not be downcast, for then they will be true monks, living by the work of their hands as our forefathers and the Apostles did. However, on account of the faint—hearted let all things be done with moderation. Above all, let one or two of the senior monks be appointed to go about the monastery during the reading time, and look out for any lazy brother giving himself over to idleness or vain talk, being unprofitable to himself and disturbing others. If — God forbid — such a monk is found, let him be punished on the first and second occasions. If he does not change, let him come under the correction of the Rule in such a way that others may fear